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Which of the following statements is NOT true?

(A) -a(b + c) = -ab - ac

(B) (-b + c)a = -ab + ac

(C) (b + 3c)a = ab + 4ac

(D) b(a + c) = ab + bc

(E) 3a(b - 2c) = 3ab - 6ac

User Kwood
by
7.1k points

2 Answers

4 votes

Answer:

(C)

Explanation:

A is true because -a*b=-ab and -a*c=-ac.

B is true because a*-b=-ab and a*c=ac.

C is NOT true because a*3c is 3ac, not 4ac.

User Nathasm
by
8.4k points
1 vote

Answer:

(C) (b + 3c)a = ab + 4ac

Explanation:

If you use the distributive property for all the other choices, they all make sense except for this one.

User Blahster
by
8.2k points
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