larachamseddine larachamseddine
  • 27-12-2019
  • Mathematics
contestada

(3a-x)(b+2x)-(x-3a)(b-2x)

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nonsibi
nonsibi nonsibi
  • 27-12-2019

Ok... so first use FOIL to combine the terms a bit.

(3a-x)(b+2x)-(x-3a)(b-2x) ----> 3ab+6ax-bx-2x²-(bx-2x²-3ab+6ax)

Now, we can combine like terms.

3ab+6ax-bx-2x²-(bx-2x²-3ab+6ax) ---> 6ab-2bx

answer: 6ab-2bx

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profarouk profarouk
  • 27-12-2019

Good evening

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