expand and simplify a) x(x-2) - x(x+1)?

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2007-12-06 12:14:18 · 5 answers · asked by ahmed 1 in Science & Mathematics ➔ Mathematics

x(x-2)-x(x+1)
=x^2-2x-x^2-x
=-3x

2007-12-06 12:18:11 · answer #1 · answered by u chi 2 · 0⤊ 0⤋

pretty sure it becomes:

x^2 - 2x - x^2 - x

which then becomes -3x.

2007-12-06 12:17:12 · answer #2 · answered by Will P 2 · 0⤊ 0⤋

x(x-2)-x(x+1)=
x^2-2x-x^2-x=
-3x

2007-12-06 12:22:31 · answer #3 · answered by Harris 6 · 0⤊ 0⤋

x^2-2x-x^2-x

-3x

2007-12-06 12:23:23 · answer #4 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋

-3x

2007-12-06 12:34:12 · answer #5 · answered by gaurang 2 · 0⤊ 0⤋