Tuesday

October 21, 2014

October 21, 2014

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)

**Answer this Question**

**Related Questions**

math - The roots of the eqn x^4 - 3x^2 + 5x - 2 = 0 are a, b, c, d, and a^n + b^...

Pre-Calculus/Trig Check please and help - Could someone please check the first ...

Math - Determine for what value(s) of d the quadratic equation 5x^2-10x+d = 0 ...

calculus - from the equation: x^4 - i = 0 x^4 = i how do you get: The solutions ...

Math - Roots Ok, what about roots? Roots of polynomials? Square roots? Cube ...

Please help! Maths - For what value of K will the equation 3x^2- 4x-(1+K)= 0 ...

math - consider the equation x^2+kx+1=0 a single fair die(dice)is rolled to ...

Pre-Calc-Please check my answer - Please help-I'm stuck really bad Thank you ...

Math - The equation x^2+px+q=0, q cannot be equal to 0, has two unequal roots ...

maths - Show that the equation (1) divided by (x+1) - (x)divided by (x-2)=0 has ...