Question

How do solve this? (a^2 + 2a + 1)(a + 1)

Answer 1

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

Answer 2

can you identify value of b in the equation?

Answer 3

Remember the formula
a^2 + 2*a*b + b^2 = (a+b)^2
So , the b=1
a^2 +2a + 1=(a+1)^2
So , you can find the a :
(a+1)^2=(a+1)(a+1)
a=-1