Question

Розкласти на множники 1)100-9x2.2)4a2+20ab+25b2.3)0,125x3-8

Answer 1

$100-x^2=(10-x)(10+x)\\4a^2+20ab+25b^2=(2a+5b)^2\\0.125x^3-8=(0.5x-2)(0.25x^2+x+4)$