(-5X^2+4)(4X^2+X).
When multiplying, you add the exponents.
1. Multiply -5x^2 by each term in the 2nd parenthesis.
2. Multiply 4 by each term in the 2nd parenthesis.
3. Combine like-terms.
-20X^3-5X^2 + 16X^2+4X =
-20X^3+11X^2+4X.
Multiply
-5x+4 by 4x^2+x
1 answer