Factories the following expression. 3x^2 +2x?
Please help and explain how you do the process, I have zero understanding of this.
How do I also do 5x^2+x
Explain the steps please
Yet another update...sorry. x^3+2x^2+5x
Explain all the steps
- PaulLv 75 years ago
One easy way to factorise it is to pull out the x.
To do 5x^2+x is the same - there's no steps just pull out the x.
x(5x + 1)
Again with x^3+2x^2+5x
just pull out the x.
x(x^2+2x + 5)
If this isn't obvious watch these videos.
- llafferLv 75 years ago
The first step in factoring expressions is to look for common factors. In this case, x is your only common factor. Pull it out of both terms and you get:
x(3x + 2)
and that's as factored as you can get.
Recall when you learned about the distribution property, where you have something in the form of:
a(x + y)
so you multiply a by both terms x and y to get:
ax + ay
factoring is the reversing of this property. Now "a" is a common factor, so pulling it out of both terms:
a(x + y)
and we're back to where we are started.
Hope this helps.
- sepiaLv 75 years ago
3x^2 + 2x
= x(3x + 2)