How do you factor the expressions #x^2+3x-4#?
2 Answers
Jun 22, 2018
You use the so called discriminant
Explanation:
Most of the quadratic equations have the form of:
In your case: a=1 , b=3, c=-4
Then we use the discriminant
In this case:
We get the result: D=25
Now we need the roots, for which we use the equation:
We get:
And that's all :)
Jun 22, 2018
Explanation:
What tow numbers sum up to our middle term of
After some trial and error, we arrive at
Hope this helps!