Question

Представьте в виде произведения: (x-2)^2-36x^2 б) c ^2 -d^2-7d-7c

Answer 1

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Answer 2

$(x-2)^2-36x^2 = (x-2)^2-(6x)^2 = (x-2-6x)(x-2+6x) = \ = -(5x+2)(7x-2)$

$c^2 -d^2-7d-7c = (c -d)(c+d)-7(d+c) = (d+c)(c-d-7)$