Question

All of the following are equivalent, except _____.

(12 + 3)x
(12 + 3x)x
15x
12x + 3x

Answer 1

B is the correct answer

Answer 2

second one you want an explanation

Answer 3

Distribute the top two to see if they are equivalent.

Answer 4

yes please @.Gjallarhorn.

Answer 5

Because when x will multiply with (12+3x)
it would be
12x +3x^2
so this is different than the rest of choices

Answer 6

you see 15x
you also see 12x plus 3 x which equals 15 x
for the for the first one you distribute and you get the same result. leaving option B

Answer 7

okay thank you