What number must you add to complete the square? x2 + 14x = -5

asked Mar 22, 2018 61.9k views

4 votes

by Fylix

7.6k points

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5 votes

44 is your answer

x2 + 14x = -5

must add 44 to complete the square

x2 + 14x +5 + 44
=x2 + 14x +49
=(x+7)^2

8.1k points

1 vote

u take half of the x term and square it....then add to both sides

14/2 = 7.......7^2 = 49...so u add 49 to both sides

FSP answered Mar 26, 2018

by FSP

7.1k points

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