simplify the following expression: -8x-18
We can factor the given expression
We find out GCF: Greatest common factor
-8x= -1 * 2*2*2* x
-18 = -1 * 2*3*3
GCF of both -8x and -18 is -1 * 2
That is -2
So GCF is -2
We pull out -2 from -8x -18
-8x - 18 = -2(4x + 9)
Both -8x and -18 are like terms so -8x-18 cannot be simplified
But -8x -18 can be factored into -2(4x + 9)