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April 21, 2014

April 21, 2014

Posted by **Shreya** on Saturday, January 7, 2012 at 12:54pm.

(15)(x-1) = (2x)(x+1)

2x^2-15x+17

do i put this in quadratic formula? i so confused.

- math-calculus -
**Steve**, Saturday, January 7, 2012 at 3:41pmFirst, get your simplification right:

(15)(x-1) = (2x)(x+1)

15x - 15 = 2x^2 + 2x

2x^2 - 13x + 15 = 0

You can use the quadratic formula, but it factors fairly easily:

(2x-3)(x-5) = 0

You can make it from there, I assume.

- math-calculus -
**Shreya**, Saturday, January 7, 2012 at 6:39pmthanks very much steve i got it :)

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