3x(5 – 2x) + 6x(x – 2)
a) 6x2 – 3x
b) 13x
c) 3x
d) 6x2 + 3x
1/2(6c+4)-2(c+5/2)=2/3(9-3c)
a) –3
b)-1/3
c)1/3
d)3
Help?
2007-11-16 06:44:59 · 3 answers · asked by Anonymous in Education & Reference ➔ Homework Help
First one:
15x - 6x^2 + 6x^2 -12x
= 3x
answer c)
Second one:
3c + 2 - 2c -5 = 6 - 2c
3c = 9
c = 3
answer d)
that's it!
2007-11-16 06:51:31 · answer #1 · answered by Marley K 7 · 0⤊ 0⤋
1. 15x-6x^2+6x^2-12x
c. 3x
2. 3c+2-2c-5=6-2c
c-3=6-2c
3c=9
c=3 d
2007-11-16 15:17:39 · answer #2 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
15x-6x^2+6x^2-12x
3x (C.)
3c+2-2c+5=6-2c
c+2+5=6-2c
c+7=6-2c
c-c+7=6-2c-c
7=6-3c
7-6=6-6-3c
1=3c
1/3=3c/3
1/3=c
c)
2007-11-16 14:56:06 · answer #3 · answered by Saber 3 · 0⤊ 0⤋