Question

Оба варианта !!!!!!!!!!!!!! и подробно

Answer 1

Вариант 1
х2+2ху+у2
с2-10с+25
n2-+mn-mn-m2 = n2-m2
2a-a2+4-2a = 4-a2
k2+0.6k+0.09
12m-16+9m2-12m=9m2-16
(с - р)3 = с3 - 3с2*p + 3с*p2 - p3

27 +3*9*2у+3*3*4у2+8у3 =
=27+27*2у+9*4у2+8у3 =
= 27+54у+36у2+8у3

Answer 2

5р-25+р2-5р = р2-25

Answer 3

0,49-1,4х-х2

Answer 4

8м-4+16м2-8м=16м2-4

Answer 5

(х + у)3 = х3 + 3х2*у + 3х*у2 + у3

Answer 6

(2с-5)3 = 8с3 - 3*4с2*5 + 3*2с*25 - 125 = 8с3 - 60с2 +150с -125