Question

(squared) x = 9 what is answer and show your work

Answer 1

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Answer:

x=3 or x= -3

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Step-by-step explanation:

x²=9 ⇔ x²-9=0 ⇔ (x-3)(x+3)=0 ⇔ x-3=0 or x+3=0 ⇔ x=3 or x= -3.

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