Question

Which expressions are equivalent to 22c + 33d?

Choose 3 answers:
(-2c - 3d)(-11)
CO
© 2011 - 31)
As
1
(66c + 99d) - 3
Со
-1X (-22 - 33d)
MY
11 . (2c + 3d)

Answer 1

A, C, and E

Explanation:

For the first one, distribute -11 to each value. A negative times a negative is a positive, so -11×-2c is 22c. -11×-3d is 33d. So the first one is right. For the third one, distribute 1/3 to each value. 1/3 of 66c is 22c, and 1/3 of 99d is 33d, so the third one is correct as well. For the last one, distribute 11 again. 11×2c is 22c and 11×3d is 33d, so the last one is correct.