0
Anonymous
It is x and y that are the unknown variables
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3xy2z
5x + 8xy + 10x + 3xy = 15x + 11xycombine like terms (the x's and the xy's)
It is the same as: 12y^2 -3xy
yes 3xy=6
2x^2+3xy-4y2(4)+3(2)(-4)-(4)(-4)8-24+16=0