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lestessanders02
lestessanders02
09.09.2020 • 
Mathematics

Add the following algebraic expressions using horizontal method: a) x-y-5, 3x+7y-9, and, 10-3x+11\\ b) 5x^{2}y, -9x^{2}, and, 6x^{2}y c) 7x-10y+5xy, -6xy+6x+8y, and, xy - x + y d) 8-2mn, 10-7mn, and 6 - 15mn Add the following algebrian expression using column method: a) 3a +4b, and, a-2b b)5x+3y-3z, and, -2x-4y+7z c)m-7mn+6, 2m+9mn-4, and, -11m-8mn-5 d) y^{3} -2y^{2}-7y+3, -8y^{3} +4y^{2}+6y-12, and, 9-5y -y^{3}+10y^{2} PLS HELPPPPP

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