1) 5a*6b-25a^2-36b^2+5a*6b=60ab-25a^2-36b^2
2) (x-y)(x+y)(x-y)=(x^2-y^2)(x-y)=x^3-x^2y-xy^2+y^3
А^2 + 2 a + 1 = (a+1)^2
1 + 2у + у^2 = (1 + y)^2
q^2 + 4q + 4 = (q +2)^2
4r^2 + 4 nr + n^2 = (2r + n)^2
p^2-20p-100 = (p -10)^2
9a^2 - 6ax + x^2 = (3a-x)
4z^2 - 32zb + 64 b^2 = (2z - 8b)^2
d^4-p^4=(d-p)^4
Сорян следующие 3 не знаю как
36m^2 - 4b^2 = (6m-2b)(6m+2b)
100n^2 - 169k^2 = (10n-13k)(10n+13k)
Log0.35(1/8x-7)=Log0.35(2)
1/8x-7=2
1/8x=2+7
1/8x=9
x=9:1/8
x=72
= 3 во второй степени = 9
.....