What would be the process of solving a modular cubic equation? Eg. $$ax^3+bx^2+cx+d=0\pmod n$$ In the case that I was given, $d$ is a (very) large number, so rational root theorem isn't a viable option. I have two of these cubic equations and I have to find an $x$ value that satisfies both of them, so is there any method to solving this problem? If it means anything, the cubic I'm dealing with is factorable to a form of $(ax+b)^3$
2026-03-26 08:03:47.1774512227
Modular Cubic Formula
750 Views Asked by Bumbble Comm https://math.techqa.club/user/bumbble-comm/detail At
1
There are 1 best solutions below
Related Questions in MODULAR-ARITHMETIC
- How do I find the least x that satisfies this congruence properties?
- Counting the number of solutions of the congruence $x^k\equiv h$ (mod q)
- Remainder of $22!$ upon division with $23$?
- Does increasing the modulo decrease collisions?
- Congruence equation ...
- Reducing products in modular arithmetic
- Product of sums of all subsets mod $k$?
- Lack of clarity over modular arithmetic notation
- How to prove infinitely many integer triples $x,y,z$ such that $x^2 + y^2 + z^2$ is divisible by $(x + y +z)$
- Can $\mathbb{Z}_2$ be constructed as the closure of $4\mathbb{Z}+1$?
Related Questions in SYSTEMS-OF-EQUATIONS
- Can we find $n$ Pythagorean triples with a common leg for any $n$?
- System of equations with different exponents
- Is the calculated solution, if it exists, unique?
- System of simultaneous equations involving integral part (floor)
- Solving a system of two polynomial equations
- Find all possible solution in Z5 with linear system
- How might we express a second order PDE as a system of first order PDE's?
- Constructing tangent spheres with centers located on vertices of an irregular tetrahedron
- Solve an equation with binary rotation and xor
- Existence of unique limit cycle for $r'=r(μ-r^2), \space θ' = ρ(r^2)$
Related Questions in CUBICS
- Roots of a complex equation
- Cubic surfaces and 27 lines
- Polynomial Equation Problem with Complex Roots
- Cubic Discriminant
- Is it always possible to rearrange an equation desirably?
- Form an equation whose roots are $(a-b)^2,(b-c)^2,(c-a)^2.$
- if $x^3 + px^2+qx+r = 0$ has three real roots, show that $p^2 \ge 3q$
- The complex equation $x^3 = 9 + 46i$ has a solution of the form $a + bi$ where $a,b\in \mathbb Z$. Find the value of $a^3 + b^3$
- Roots of $z^3 + 3iz^2 + 3z + i = 0$?
- If the roots of the cubic equation $ax^3+bx^2+cx+d=0$ are equal, can one then establish a relationship between $a, b, c, d$?
Trending Questions
- Induction on the number of equations
- How to convince a math teacher of this simple and obvious fact?
- Find $E[XY|Y+Z=1 ]$
- Refuting the Anti-Cantor Cranks
- What are imaginary numbers?
- Determine the adjoint of $\tilde Q(x)$ for $\tilde Q(x)u:=(Qu)(x)$ where $Q:U→L^2(Ω,ℝ^d$ is a Hilbert-Schmidt operator and $U$ is a Hilbert space
- Why does this innovative method of subtraction from a third grader always work?
- How do we know that the number $1$ is not equal to the number $-1$?
- What are the Implications of having VΩ as a model for a theory?
- Defining a Galois Field based on primitive element versus polynomial?
- Can't find the relationship between two columns of numbers. Please Help
- Is computer science a branch of mathematics?
- Is there a bijection of $\mathbb{R}^n$ with itself such that the forward map is connected but the inverse is not?
- Identification of a quadrilateral as a trapezoid, rectangle, or square
- Generator of inertia group in function field extension
Popular # Hahtags
second-order-logic
numerical-methods
puzzle
logic
probability
number-theory
winding-number
real-analysis
integration
calculus
complex-analysis
sequences-and-series
proof-writing
set-theory
functions
homotopy-theory
elementary-number-theory
ordinary-differential-equations
circles
derivatives
game-theory
definite-integrals
elementary-set-theory
limits
multivariable-calculus
geometry
algebraic-number-theory
proof-verification
partial-derivative
algebra-precalculus
Popular Questions
- What is the integral of 1/x?
- How many squares actually ARE in this picture? Is this a trick question with no right answer?
- Is a matrix multiplied with its transpose something special?
- What is the difference between independent and mutually exclusive events?
- Visually stunning math concepts which are easy to explain
- taylor series of $\ln(1+x)$?
- How to tell if a set of vectors spans a space?
- Calculus question taking derivative to find horizontal tangent line
- How to determine if a function is one-to-one?
- Determine if vectors are linearly independent
- What does it mean to have a determinant equal to zero?
- Is this Batman equation for real?
- How to find perpendicular vector to another vector?
- How to find mean and median from histogram
- How many sides does a circle have?
If you can factor the cubic into the form you give (I assume the $a$ and $b$ in the factored form are different from the $a$ and $b$ in the non-factored form), then you are just trying to find $x$ so that $(ax+b)^3\equiv 0\mod n$. Trying to solve $y^3\equiv 0\mod n$ first might help then.
If $d$ is very large compared to $n$, you might also want to try reducing $d$ modulo $n$ to a number $d'$ between $0$ and $n-1$, inclusive, before you do anything else.