Homework SourseThe question was 9x2 12x 14 And I needed to complete the s
The question was 9x^2 - 12x = 14
And I needed to complete the square
After doing so
I + 6 to both sides, and started off at the same equation as I started with.
and got
9x^2 - 12x = 14
And now trying to factor 9x^3 - 23x to get my answer, but I can\'t seem to do it.
And I needed to complete the square
After doing so
I + 6 to both sides, and started off at the same equation as I started with.
and got
9x^2 - 12x = 14
And now trying to factor 9x^3 - 23x to get my answer, but I can\'t seem to do it.
Solution
9x^2 -12 x +4 =18 (3x-2)^2 = 18 => 3x-2 = sqrt(18) or -sqrt(18) => x=(2+sqrt(18))/3 or (2-sqrt(18))/3
