SOLUTION: Solve x^2 + 2x - 15 > 0 A. x > 1 or x < -15 B. x < 3 or x > -5 C. x < -3 or x > 5 D. x > 3 or x < -5 E. -3 < x < 5

Algebra ->  Rational-functions -> SOLUTION: Solve x^2 + 2x - 15 > 0 A. x > 1 or x < -15 B. x < 3 or x > -5 C. x < -3 or x > 5 D. x > 3 or x < -5 E. -3 < x < 5       Log On


   

Question 1133138: Solve x^2 + 2x - 15 > 0
A. x > 1 or x < -15
B. x < 3 or x > -5
C. x < -3 or x > 5
D. x > 3 or x < -5
E. -3 < x < 5
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Not the full answer, but
x%5E2%2B2x-15%3E0
%28x-3%29%28x%2B5%29%3E0
Roots of the equation would be 3 and -5; and since left member is parabola with a minimum, you want the parts of the parabola ABOVE the horizontal axis...