Mathematics, 27.09.2019 07:50, razomike88
Marcus finds that (3x^2-2y^2+5x)+(4x^2+12y-7x)= 7x^2-10y^2-2x what error did marcus make?
a: he combined the terms 5x and –7x incorrectly.
b: he combined the terms 3x^2 and 4x^2 incorrectly.
c: he combined the terms –2y^2 and 12y^2 incorrectly.
d: he subtracted the polynomials instead of adding.
Answers: 2
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Marcus finds that (3x^2-2y^2+5x)+(4x^2+12y-7x)= 7x^2-10y^2-2x what error did marcus make?
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