Question

Find the value of the expression 2x4–5x3+x2+3x+2 for: x=-5

Answer 1

Answer:

-8

Explanation:

2x4–5x3+x2+3x+2

Since the value of x=5

By putting the value in the above equation;

= 2(5)4 - 5(5)3 + (5)2 + 3(5) + 2

= 40 - 75 + 10 + 15 + 2

= -8

Therefore if the value of x is 5, the answer of the above equation is -8.