Question

someone help me with these two question please?



Which of the following is equivalent to (6x + 8x + 2) - (2x + 9) *

16x + 11
12x - 7
4x - 9
12x - 18







Which is equivalent to 6xz - 15yz + 9z? *

(2x - 5)(3z + 4)
(x - 5)(6z + 4)
3z(2x - 5y + 3)
3(2xz - y + 3)

Answer 1

Okay, the first step in the first one is to multiply both sides of the right side of the equation by -1. So now you have -2x - 9.

Answer 2

Now combine like terms. the x's can go together to make 12x, and the normal numbers can go together to make -7. The answer is 12x - 7.

Answer 3

Now for the second one, multiply every answer until you get one that matches up. The answer will be C. :)

Answer 4

ohhhh... okay that was easy