Question

Simplify the following polynomial expression:
7.5x^4 - 4x^2 + 3x^4 - 3 + 8x^2 + 8

Answer 1

8x^4+4x^2+5

Explanation:

5x^4-4x^2+3x^4-3+8x^2+8

combine numbers with exponents that are alike

5x^4+3x^4+8x^2-4x^2+8-3

8x^4+4x^2+5