Answer:
x= 3 , x= - 3
Step-by-step explanation:
2x²= 18
x²= 18/2
x²= 9
x²-9=0
(x-3)(x+3)
= x=3 , x=-3
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Answer:
x= 3 , x= - 3
Step-by-step explanation:
2x²= 18
x²= 18/2
x²= 9
x²-9=0
(x-3)(x+3)
= x=3 , x=-3