6. Factor:
Middle number is -1 and the last number is -6.
If we want to factor, that means we want something in the form:
(a+_)(a+_)
To determine which number go in the blanks, we need two numbers that:
*Add together to get -1.
*Multiply together to get -6.
These numbers would be 2 and -3:
-> 2+(-3)=-1
-> 2*(-3)=-6
Then, filling the blanks, the factor of this expression would be:
