Answer:
(x - 10)(x + 7).
Explanation:
This is a quadratic expression and the factors are of the form (x + a)(x + b).
We have x^2 - 3x - 70.
- to find the values of a and b in this expression we need 2 numbers whose product is -70 and whose sum is -3.
They are -10 and +7 , so the factors are:
(x - 10)(x + 7).