What number must you add to complete the square? x^2 + 4x = 13 A. 16 B. 8 C. 2 D. 4 Please help.

asked Aug 5, 2017 162k views

5 votes

What number must you add to complete the square? x^2 + 4x = 13

A. 16
B. 8
C. 2
D. 4

Please help.

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3 votes

u take half of 4, which is 2, and square it, which is 2^2 = 4....u would then add 4 to both sides

Josh Wood answered Aug 12, 2017

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