21-03-2018
Mathematics

contestada

[2y + (3z - x)] [2y - (3z - x)]

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corvette15401 corvette15401

21-03-2018

Hi, I'd be glad to help!

4y(2) - 9z(2) + 6xz - x(2)

The (2's) mean raised to the (2nd power)

Hope this helps.
Have a great day!

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