fayzamohamed506 fayzamohamed506

29-05-2017
Mathematics

contestada

Evaluate x^2 - 7xy for x=7 and y=3

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imafabulouskitten imafabulouskitten

29-05-2017

Plug 7 to x and 3 to y so now it's 7^2 - 7(7)(3).
7^2 = 49
-7(7)(3) = -147
49 - 147 = -98

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