Question

What is the value of b? b(b - 8) = -16

Answer 1

Answer:

b = 4

Step-by-step explanation:

b(b-8) = -16

b2 - 8b + 16 = 0

b2 - 4b - 4b + 16 = 0

b ( b -4 ) - 4 ( b - 4 ) = 0

(b - 4) (b - 4) = 0

b -4 = 0

b = 4

Answer 2

Answer:

Step-by-step explanation:

b(b - 8) = -16

b^2-8b+16 =0

B^2-4b-4b+16=0

B(b-4)-4(b-4)=0

(B-4)(b-4)=0

(B-4)=0

B=4