Question

Solve this by completing the square:
-2x^2+16x=5

Answer 1

-16 +- √(-16)2 -4(3)(5) / 2(3) work out under the square

-16 +- √196 / 6 - sqaure and add 16

+-30/6

+-5 so now I get to this.

The answer set is {-5, -1/3} How do I get to the -1/3 answer now that I have the -5?

Answer 2

By solving with x?