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#### karush

##### Well-known member

- Jan 31, 2012

- 2,771

what is the quadratic equation which the 2 values of x satisfy

well I got \(\displaystyle 2x^2+7x-15\) which gives \(\displaystyle x=-5\) and \(\displaystyle x=\frac{3}{2}\)

-5 seems to work but

\(\displaystyle \frac{3}{2}\) doesn't or is there another way to do this.

thanks ahead,