mariah1689 mariah1689

22-09-2019
Mathematics

contestada

WHAT'S THE ERROR? A student says 3(n- 5) is equal to 3n - 5. What's
the error?

Respuesta :

bradnorris03 bradnorris03

22-09-2019

Answer:

The student incorrectly used the Distributive property!

Step-by-step explanation:

The Distributive property says a(b+c)=ab+ac

In this problem the answer SHOULD be 3n-15, however the student forgot to distribute the 3 to the -5!

Answer Link

TheBlueFox TheBlueFox

22-09-2019

Answer: The student did not distribute correctly

Step-by-step explanation: The student did not distribute correctly. The student has 3n correct because he multiplied 3 by n but -5 is not correct. He was supposed to distribute the 3 to the -5 to get -15.

Ver imagen TheBlueFox

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