2007-06-30 11:36:19 · 4 answers · asked by Anonymous in Education & Reference ➔ Homework Help
(-x^2 – 6x + 3) – (-9x^2 + x – 1) – (x^2 + 5x – 2)
= -x^2 -6x + 3 + 9x^2 -x + 1 -x^2 -5x + 2
=7x^2 -12x + 6
2007-06-30 11:56:47 · answer #1 · answered by blueskies 7 · 0⤊ 0⤋
make all the equations one big equation
-x^2-6x+3+9x^2-x+1-x^2-5x+2
add like terms
7x^2-12x+6
yours from there :D
2007-06-30 19:01:13 · answer #2 · answered by Anonymous · 1⤊ 0⤋
(-x^2-6x+3)-(-9x^2+x-1)-(x^2+5x-2)
First, the negatives need to be multiplied into their respective parenthesis:
-(-9x^2+x-1) = 9x^2-x+1
-(x^2+5x-2) = -x^2-5x+2
Then you add them together:
-x^2-6x+3
+9x^2-x+1
-x^2-5x+2
________
7x^2-12x+6
2007-06-30 21:14:44 · answer #3 · answered by mommy again 2 · 0⤊ 0⤋
-x^2+9x^2-x^2=7x^2
-6x-x-5x=-12x
3+1+2=6
7x^2-12x+6
2007-06-30 20:32:47 · answer #4 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋