Question

Упростить и решить 2-2b^2
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4b^2-8b+4

Answer 1

$2 - 2b {}^{2} \ 2(1 - b {}^{2} ) \ 2(1 - b) times (1 + b) \ \ 4b {}^{2} - 8b + 4 \ 4(b {}^{2} - 2b + 1) \ 4(b - 1) {}^{2}$