Algebra

Question

-1

31

1

+1000

Fill in the blanks with numbers to make a true equation.
3x^2 + 12x - 4 - 2x^2 + 6x + 7 = ___ (x + ___ )^2 + ___

Hi6942O Jun 9, 2024

NotThatSmart · Answer 1 · 2024-06-09T08:25:13

Let's first combine all like terms. We get

$x^{2}+18x+3$

Now, completing the square,we get $(x+9)^2-78$

So the first blank is 1

The second blank is 9

The third blank -78

Thanks! :)