Question

How do you factor #y= x^2 + 3x - 10 #?

Answer 1

`y = x^2+3x-10 = (x+5)(x-2)`

Explanation:

Find a pair of factors of `10` which differ by `3`.

The pair `5, 2` works, hence:

`x^2+3x-10 = (x+5)(x-2)`