Mathematics, 27.06.2019 04:30 bovalle
Marcus finds that (3x2-2y2+5x)+(4x2+12y2-7x)=7x2-10y2 -2x. what error did marcus make? he combined the terms 5x and –7x incorrectly. he combined the terms 3x2 and 4x2 incorrectly. he combined the terms –2y2 and 12y2 incorrectly. he subtracted the polynomials instead of adding.
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Marcus finds that (3x2-2y2+5x)+(4x2+12y2-7x)=7x2-10y2 -2x. what error did marcus make? he combined...
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