Question

Consider this expression.( x+ 9) (x– 2) – 9x – 6What expression is equivalent to the given expression?

Answer 1

We have the following expression given:

$(x+9)(x-2)-9x-6$$x^2-2x+9x-18-9x-6$$x^2-2x-24$

Then we just need to find two numbers that added are -2 and multiplied -24. And these numbers are -6 and 4. Because 4-6=-2.

4* (-6)=-24

And then we can write the solution like this:

$(x+4)(x-6)$