SOLUTION: Factor each quadratic expression. 1. –8x2 + 32 2. 3x2 + 13x – 10 3. 5x2 – 19x – 4

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Factor each quadratic expression. 1. –8x2 + 32 2. 3x2 + 13x – 10 3. 5x2 – 19x – 4       Log On


   

Question 171203: Factor each quadratic expression.

1. –8x2 + 32
2. 3x2 + 13x – 10
3. 5x2 – 19x – 4

Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
1. common factors 1st __ -8(x^2-4)

difference of squares __ -8(x+4)(x-4)


2. factors of 3 and -10 that "combine" to give 13 __ (3x-2)(x+5)


3. factors of 5 and -4 that "combine" to give -19 __ (5x+1)(x-4)