Brainlydude12 Brainlydude12

25-03-2019
Mathematics

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30 POINTS PLEASE HELP

2 QUESTIONS

30 POINTS PLEASE HELP2 QUESTIONS class=

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choixongdong choixongdong

25-03-2019

x^2 + 14x = 32

To make a perfect square, you need to add 49 to both sides

x^2 + 14x + 49 = 32 + 49

Answer: 49

Solve:

x^2 + 14x + 49 = 32 + 49

(x + 7)^2 = 81

(x + 7)^2 = 9^2

So

x + 7 = 9

x = 2

and

x + 7 = -9

x = -16

Answer:

x = 2 and x = -16

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