Question

(06.06 MC)

A student attempted to generate an equivalent expression using the distributive property, as shown below:

3(p − 4) = 3p − 4

What was the mistake made? (1 point)
a


3 was not multiplied by p
b


3 was not multiplied by −4
c


Incorrect sign was used for the first term
d


Incorrect sign was used for the second term

20 POINTS HELP ASAP

Answer 1

b 3 was not multiplied by −4

Explanation:

The correct way to apply the distributive property is to multiply 3 by p and multiply 3 by -4 as shown below.

3(p − 4) = 3p + 3 × (-4) = 3p - 12

His attempt is

3(p - 4) = 3p - 4

He did multiply 3 by p, but h did not multiply 3 by -4.

Answer: b 3 was not multiplied by −4