Question

(c-b)^2-b(b+2c) упростить

Answer 1

(c-b)²-b(b+2c)=с²-2вс+в²-в²-2вс=с²-4вс

Answer 2

Ответ:

$(c - b) {}^{2} - b(b + 2c) \\ \\ c {}^{2} - 2bc + b {}^{2} - b {}^{2} - 2bc = c {}^{2} - 4bc$

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