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March 28, 2015

March 28, 2015

Posted by **Shreya** on Tuesday, January 17, 2012 at 8:02pm.

value of N is?

A. 6

B. 8

C. 12

D. 24

please help with this.

- math-calculus -
**Damon**, Tuesday, January 17, 2012 at 8:10pmx^2+2x-10=5 or x^2+2x-10=-5

x^2+2x-15=0 or x^2+2x-5 = 0

(x+5)(x-3) or [ -2 +/- sqrt(4+20)]/2

= [ -2 +/- sqrt (4*6)] /2

= -1 +/- sqrt(6)

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