Question

Can someone show me how to factor 5(a+b)^2 - 20

Answer 1

5(a+b)^2 - 20 =0
5(a+b)^2 = 20
(a+b)^2 =4
(a+b)^2 =2^2
a+b = +2 or -2

Answer 2

\(5(a+b)^2-20\)
\(5((a+b)^2-4\)
\(5(a+b+2)(a+b-2)\)

Answer 3

thank you

Answer 4

Watchmath,how did you get 5(a+b)^2 -4