Theo started to solve the quadratic equation (x+2)2−9=−5. He added 9 to both sides and the resulting equation was (x+2)2=4. Next, he took the square root of each side. Which was the resulting equation of that step?

Question

Revolt · Accepted Answer

x plus 2 is equal to plus or minus 2

Pretest

Theo started to solve the quadratic equation (x+2)2−9=−5. He added 9 to both sides and the resulting equation was (x+2)2=4. Next, he took the square root of each side. Which was the resulting equation of that step?

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