Question

Fatore:
A- 9x² +6x +1 =
B-x² - y² =
C-6x³ -12x²+ 18x =

Answer 1

(a+b)^2=a^2+2ab+b^2
(a-b)^2=a^2-2ab+b^2
(a+b)(a-b)=a^2-b^2


A- 9x² +6x +1 =(3x+1)²

B-x² - y² =(x+y)(x-y)

C-6x³ -12x²+ 18x =6x(x-1)²+12x