Wednesday
April 16, 2014

Homework Help: math,help,factoring

Posted by jas20 on Tuesday, February 27, 2007 at 6:41pm.

i need help i don't know how to do the next step.

factor by grouping

x^3-3x^2+4x-12

so what i have so far is this

=(x^3-3x^2)+(4x-12)
=x(x^2-3x)+4(x-3)
from here i don't know...


and then this one is driving me insane this next one...

Rewrite the middle term as the sum of two terms and then factor by grouping.

x^2-14x+45


i'd figure out problem #1
these are the steps I did:
factor by grouping

x^3-3x^2+4x-12

so what i have so far is this

=(x^3-3x^2)+(4x-12)
=x^2(x-3)+4(x-3)
= (x-3)(x^2+4)

I AM STILL HAVING TROUBLE WITH PROBLEM NUMBER 2

to your second question


wouldnt it be-
(x-5)(x-9)


You have to find 2 numbers to multiply to bed 45 BUT add to be negative 14.

yes,thank you......

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

calc - 6(4x+3)^5(4)(3x-5)^5+ 5(3x-5)^4(3)(4X+3)^6 common factors: (4x+3)^5 (3x-5...
bobpursley,math - about this problem , I figured it out and i did get the answer...
Math - Can someone please check my answers below for accurateness? The ...
MATH - A student is solving the equation 81x 1 = 3x + 2. Step 1: 81x 1 = 3x...
math,bobpursly, - 4x-2x^2+4x^3 from 4x^3+x-3x^2 4x^3+x-3x^2 -( 4x-2x^2+4x^3) ...
Algebra 1 - Are these right? xy - 3x - 8y + 24 (3x-y)-(8y+24) 8y+24 4x^2 + 20x...
algebra - thank everyone that site helped but now i just have to practice. for ...
math - how do you factor the polynomial 3x^4-4x^3+4x^2-4x+1? i got (x-1)(3x-1)(...
Algebra - How does 3x(4x+5)-5(4x+5) factor out to be (4x+5)(3x-5) ? This may be ...
algebra - simplify (6x^3-16x^2+11x-5)/(3x-2) (3x-2)(2x-1)^2-3 my muliple choice ...

Search
Members