Answer:
x = -7
Step-by-step explanation:
x=-7 or {-7}
(x+7)(x+7)=0
For a product to equal 0, one or more of the factors must be 0.
x+7=0
x=-7
Since the factors are identical, there is only one element of the solution set:
Hope this helps!
90 and 10
30ft
50- 20 = 30
hope it helps!
