2 years ago

X 2 +6x+___ complete the square

Mathematics

1 answer:

vaieri [72.5K]2 years ago

6 0

9 is the blank.

(a+b)^2 = a^2 + 2ab + b^2

a = x
b = 3

(x+3)^2 = x^2 + 6x + 9

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