Question

How do you solve this by factoring?8x+16" alt="0=x^2+8x+16" align="absmiddle" class="latex-formula">

Answer 1

Answer:

x = -4  (multiplicity 2)

Step-by-step explanation:

x^2 + 8x + 16 = 0

You need 2 numbers whose product is + 16 and whose sum is +8.

They are +4 and + 4 so the factors are:-

(x + 4)(x + 4)

(x + 4)(x + 4) = 0

x = -4  (multiplicity 2)

(There are 2 zeroes each of value -4)