Question

(a+b-2c) multiply by (2a-4b)

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Answer 1

(a + b- 2c) (2a - 4b)

= 2a(a + b - 2c) -4b (a + b - 2c)
= 2a² + 2ab - 4ac - 4ba - 4b² + 8bc

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Answer 2

Answer:

2a²-2ab-4ac+8bc-4b²

Step-by-step explanation:

(a+b-)(2a-4b)

= 2a(a+b-2c) -4b(a+b-2c)

= 2a²+2ab-4ac -4ab-4b²+8bc

=2a²-4b²-2ab-4ac+8bc