I am completely lost in this one
$3x+3y-1,4x^2+y-5,4x+2y$ are sides of an equilateral triangle, its area is closest to the which integer?
I am completely lost in this one
$3x+3y-1,4x^2+y-5,4x+2y$ are sides of an equilateral triangle, its area is closest to the which integer?
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From equating first and third equations, you get $y=x+1$. Use this in another two of the equations to get values of $x$ and $y$. Then use the formula for the area of a triangle.