Question

Which of the following expressions could be simplified further?

7x + 3m + 7x + 4z − 5p

6x − 7m + 9z

4x + 3m − 5z + 8a

2x + 3m − 5xz + 4z

Answer 1

Use the process of elimination to cross out the ones that contain prime numbers that cannot be raised or lowered

Answer 2

for example B is wrong because it contains a 7m, and there is no other value with m, or that is divisable by 7

Answer 3

does that make sense?

Answer 4

so i would be A ? @koalamon

Answer 5

yes... :)