SOLUTION: Evaluate the polynomial for x=4 and for x=-4 2x^2-3x+7

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Evaluate the polynomial for x=4 and for x=-4 2x^2-3x+7      Log On


   

Question 808712: Evaluate the polynomial for x=4 and for x=-4
2x^2-3x+7
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

to evaluate the polynomial for x=4 and for x=-4, substitute x with given value in
2x%5E2-3x%2B7
so, if x=4 you will have:
2%284%29%5E2-3%284%29%2B7
=2%2A16-12%2B7
=32-12%2B7
=27

and, if x=-4 you will have:
2%28-4%29%5E2-3%28-4%29%2B7
=2%2A16%2B12%2B7
=32%2B12%2B7
=51