Question

Multiplying polynomials

Find (6v^2+ 2v – 9)(4 – 5v).

Answer 1

−30v^3 + 14v^2 + 53v − 36

Explanation:

(6v2+2v−9)(4−5v)

= (6v2+2v+−9)(4+−5v)

= (6v2)(4)+(6v2)(−5v)+(2v)(4)+(2v)(−5v)+(−9)(4)+(−9)(−5v)

= 24v2−30v3+8v−10v2−36+45v

= −30v^3+14v^2+53v−36