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