Multiply mentally.
-$\left(x-2 x^{3}\right)^{2}$
A) $x^{2}-4 x^{4}+4 x^{6}$
B) $x^{2}-4 x^{3}+4 x^{6}$
C) $x-4 x^{2}+4 x^{6}$
D) $x^{2}-4 x^{6}+4 x^{9}$

Name: Multiply mentally. -$\left(x-2 x^{3}\right)^{2}$ A) $x^{2}-4 x^{4}+4 x^{6}$ B) $x^{2}-4 x^{3}+4 x^{6}$ C) $x-4 x^{2}+4 x^{6}$ D) $x^{2}-4 x^{6}+4 x^{9}$
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Question

Quizplus · Accepted Answer

Squaring the expression $(x-2x^3)^2$ gives $x^2 - 4x^4 + 4x^6$, following the formula $(a-b)^2 = a^2 - 2ab + b^2$.

Multiply Mentally (x−2x3)2\left(x-2 x^{3}\right)^{2}(x−2x3)2 A) x2−4x4+4x6x^{2}-4 x^{4}+4 x^{6}x2−4x4+4x6 B) x2−4x3+4x6x^{2}-4 x^{3}+4 x^{6}x2−4x3+4x6 C) x−4x2+4x6x-4 x^{2}+4 x^{6}x−4x2+4x6

Multiply Mentally $\left(x-2 x^{3}\right)^{2}$ A) $x^{2}-4 x^{4}+4 x^{6}$ B) $x^{2}-4 x^{3}+4 x^{6}$ C) $x-4 x^{2}+4 x^{6}$