ismilecx ismilecx

31-10-2016
Mathematics

contestada

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

Please help.

Respuesta :

texaschic101 texaschic101

31-10-2016

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

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