Question

I have to subtract is now picture below @amistre64

Answer 1

is the results going to have a +4x or a -4x in them ... can you tell just by looking at it?

Answer 2

+4x?

Answer 3

right, so that gives us A or B .... what is your thoughts for them? should we start with a -2 or a 12?

Answer 4

-2 because we're subtracting 5 and 7

Answer 5

good, then B is the only option that has a chance of being correct

-2x^3 ..... +4x...

Answer 6

so is b correct?

Answer 7

its the only option that CAN be correct .... so it would be the only one we would want to choose. if we did not want to finish the rest of the calculatons.