Huff78228 Huff78228

26-07-2017
Mathematics

contestada

What number must you add to complete the square? X^2 +12x=40

Respuesta :

26-07-2017

You halve the linear coefficient, square it, then add that to both sides. In this case:

(12/2)^2=6^2=36 so you would add 36 to both sides

x^2+12x+36=76 so that the left side is now a perfect square

(x+6)^2=76

Answer Link

slamphear slamphear

12-11-2020

Answer:

36

Step-by-step explanation:

(x+6)^2=76

Answer Link

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