2a + 3b - 4c and a - b - c can you do this my row method my multiplication
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Answered by
1
Answer:
(2a+3b-4c)(a-b-c)
=2a²-2ab-2ac+3ab-3b²-3bc-4ac+4bc+4c²
=2a²-3b²+4c²+ab+bc-6ac
Answered by
2
Answer:
(2a + 3b-4c)(a-b-c)
a(2a +3b-4c) - b(2a+3b-4c)-c(2a +3b-4c)
2a²+3ab-4ac-2ab-3b²+4bc-2ac-3bc+4²
2a²-3b²+4c² +3ab-2ab+4bc-3bc -4ac-2ac
2a²-3b²+4c²+3ab+bc-6ac
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