Question

Expand −2p(5p² – 3p + 7)

Answer 1

−2p(5p² − 3p + 7) = (−2p) (5p²) + (−2p) (−3p) + (−2p) (7)

= [(−) (+) (2 × 5) (p × p²)] + [(−) (−) (2 × 3) (p × p)] + [(−) (+) (2 × 7)p]

= −10p³ + 6p² – 14p