(7x^3-2x^2+8)-(-8x^3+19)
2007-05-09 17:20:09 · 10 answers · asked by Anonymous in Education & Reference ➔ Homework Help
Hey there!. Firstly expand the bracket out:
7x^3-2x^2+8+8x^3-19
=15x^3-2x^2-11
And that's your simplified answer :). It's year 8 math not so hard..
2007-05-09 20:01:34 · answer #1 · answered by Anonymous · 0⤊ 0⤋
First, get rid of the parentheses...this yields:
7x^3-2x^2+8+8x^3-19...careful with the negative sign in front of the second set...
combine numbers with like terms...yields:
15x^3-2x^2-11
Hope this helps.
2007-05-09 18:32:03 · answer #2 · answered by George R 2 · 0⤊ 0⤋
7x^3-2x^2+8+8x^3-19
15x^3-2x^2-11
2007-05-09 19:35:19 · answer #3 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
15x^3 - 2x^2 - 11
That is the simplification of the problem if that is what you wanted :)
2007-05-09 18:31:00 · answer #4 · answered by Anonymous · 0⤊ 0⤋
you could resolve the equation yet you could simplify. once you do you get : 10x3 - 2x2 - 12x + 8. you combine (like words) 4x3 with 6x3 (10x3) and 2x2 with -4x2 (-2x2) and -5x with -7x (-12x) and you will't do something with +8 so which you purely placed it on the top of the equation.
2016-12-17 08:51:41 · answer #5 · answered by vannostrand 4 · 0⤊ 0⤋
It's up to you. Maybe you should concentrate on english.
2007-05-09 18:28:40 · answer #6 · answered by sandfly1234 3 · 0⤊ 0⤋
I wouldn't, I mean, just look at all them numbers!
2007-05-09 18:28:23 · answer #7 · answered by sndsofscnce 2 · 0⤊ 0⤋
Ugh....Wish I could help, mate...I'm only in Algebra 1....
2007-05-09 18:28:32 · answer #8 · answered by Satan's Own™ 5 · 0⤊ 0⤋
Yes you do.
2007-05-09 18:27:36 · answer #9 · answered by Anonymous · 0⤊ 0⤋
what is the problem?? what is the equation??
2007-05-09 18:30:09 · answer #10 · answered by jap 2 · 0⤊ 0⤋