Bloxxer Bloxxer

16-01-2019
Mathematics

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For the equation (2x - 2) (4x +4)
I got 8x² -8
Can you explain why this is correct or incorrect?

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mathecoach mathecoach

16-01-2019

Answer:

(2x - 2) (4x +4)

= 2x*4x + 2x*4 - 2*4x - 2*4

= 8x^2 + 8x - 8x - 8

= 8x^2 - 8

Your answer is correct. Great.

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