Multiply:
(- 3d + 7f) × (5d + f)
= -3d (5d + f) + 7f (5d + f)
= - 15d2 – 3df + 35df + 7f2
= - 15d2 + 32df + 7f2
AI is thinking…
Couldn't generate an explanation.
Generated by AI. May contain inaccuracies — always verify with your textbook.
