When you have an expression like:
(x + 2)^2
it actually means:
(x + 2)*(x + 2)
But how come you can't just distribute the exponent directly like:
x^2 + 2^2 = x^2 + 4
?
2026-04-03 01:42:14.1775180534
Factoring and distributing exponents
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$$(x+2)^2=(x+2)\times (x+2)=(x+2)\times x+(x+2)\times 2=(x^2+2x)+(2x+4)$$