Question

Multiply the polynomials . Simplify the answer. 5a^2+2a-7 and 3a^2-a+1

Answer 1

-16a^2 + a + 1

Explanation:

5a^2 + 2a - 7 * 3a^2 - a - 1

Combine like terms:

5a^2 - 7 * 3a^2 + 2a - a + 1

5a^2 - 7 * 3a^2 + a + 1

Multiply numbers:

5a^2 - 21a^2 + a + 1

Combine like terms:

-16a^2 + a + 1