solve 3a(a-4b+5c)-4a(10c-3b+2a)
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7
Answer:
3a(a-4b+5c)-4a(10c-3b+2a)
3a²-12ab+15ac-40ac+12ab - 8a²
3a²-8a²-12ab+12ab+15ac-40ac
-5a²-25ac
Answered by
1
(3a^2) - 12ab + 15ac - 40ac + 12ab - (8a^2)
(3-8)a^2 + (-12 + 12)ab + (15-40)ac
-5a^2 - ab - 25ac
(3-8)a^2 + (-12 + 12)ab + (15-40)ac
-5a^2 - ab - 25ac
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