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

Mathematics

Salty

12 November, 08:51

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?

+2

Answers (1)

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Kamila Dennis · Answer 1

(x + 2) ^2 - 9 = - 5 ... he added 9

(x + 2) ^2 = 4 ... take sqrt of both sides, eliminating the ^2 on the left

x + 2 = sqrt 4 <==

or they might want this one ... x + 2 = 2