What solution do 2x2 - 13x + 21 = 0 and 2x2 + 9x - 56 = 0 have in common? Round your answer to the nearest tenth if necessary.

cierrakristal Jul 2, 2019

#1**+2 **

If their solution is in common, we can set the equations equal to one another

So 2x^2-13x+21 = 2x^2+9x-56

-22x = -77

Solve x from here and round to the nearest tenth.

You are very welcome!

:P

CoolStuffYT Jul 2, 2019