SOLUTION: Factor the polynomial expression. If necessary, use the caret (^) to enter exponents. For example, write x2 as x^2. 8x2 + 10x - 3

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Factor the polynomial expression. If necessary, use the caret (^) to enter exponents. For example, write x2 as x^2. 8x2 + 10x - 3       Log On


   

Question 144899: Factor the polynomial expression. If necessary, use the caret (^) to enter exponents. For example, write x2 as x^2.
8x2 + 10x - 3

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
8x%5E2+%2B+10x+-+3
This is (4x-1)(2x+3)
You find this by "fumbling around" with it. We can see that the coefficients are 1 and 3, since they are they only factors of 3 (ignoring fractions).
So it's (?x 1) times (?x 3). We can also see that either 1 or 3 is negative, but not both.
The 2 possible coeffs for the x are 2 and 4, or 8 and 1.
The result is several possibilities. Change them around until you find the one that fits.