SOLUTION: (mx+4)(2x-5) is simplified to 6x^2+23x-20 What is the value of m? I forget how to do this.

Question 1012995: (mx+4)(2x-5) is simplified to 6x^2+23x-20
What is the value of m?
I forget how to do this.
Found 2 solutions by Boreal, MathTherapy:
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
Foil out the first
2x^2m-5mx+8x-20=6x^2+23x-20
2x^2m-5mx=6x^2+15x
divide by x
2xm-5m=6x-15
m(2x-5)=6x-15
m=3
======

Answer by MathTherapy(10557) (Show Source): You can put this solution on YOUR website!

(mx+4)(2x-5) is simplified to 6x^2+23x-20
What is the value of m?
I forget how to do this.

cannot be factored with integers, as there are no 2 integers than MULTIPLY to get - 120 (ac), and SUM to + 23 (b).
In this case,
RELATED QUESTIONS
If (mx^3-2x)(2x^2+3x-4)-(2x5+4x^4) is simplified to 4x^5+5x^4-16x^3-6x^2+8x how do I find (answered by fractalier)
In the expression (mx^3-2x)(2x^2+3x-4)-(2x^5+4x^4) how can I fing the value of m? This (answered by Alan3354)
A polynomial expression is show below. (mx^3+3)(2x^2+5x+2)-(8x^5+20x^4) The expression is (answered by amarjeeth123)
If the equation (mx-3)(2x+4) is simplified to 24x^2+42x-12 how do I find thevalue of... (answered by fractalier)
Hi! Thanks for the service. How do you solve this question:Which of the following is a... (answered by checkley71)
This is the problem: I forget what to do next 2n+y= $1499 (This is what I have so far) (answered by Mathtut)
Given these two equations : f(x)=x^2-6x+9 and g(x)=-3x-5, change the slope of the line so (answered by ewatrrr)
Ok, I know this should be easy, but i forget how to do this type of question when the... (answered by Earlsdon)
Use the given conditions to write an equation for each line in point-slope form and... (answered by jim_thompson5910,josgarithmetic,MathTherapy)