Answer:
15.
a) 9
b) (x + 3)(x + 3) or (x + 3) ^ 2
16.
a) 121
b) (x + 11)(x + 11) or (x + 11) ^ 2
17.
a) 81
b) (x + 9)(x + 9) or (x + 9) ^ 2
x=-1
Step-by-step explanation:
just like 8/8 is 1 the same concept only you add a negative
