Question

A) Fill in the gaps to factorise the expression

below.
+6x+8 = (x+)(x+)
b) Use your answer to part a) to solve
x² + 6x + 8 = 0

Answer 1

(x+2)(x+4)=0

x+2=0 or x+4=0

x= -2 or x= -4

Explanation:

factorise

make each factor equal to 0

transpose and change sign