Question

Four students were asked to write an expression which has terms that have a greatest common factor of 8c.

the expressions provided by the students are shown below.

Tanya

32C+16cd

Wyatt

8c-48cd

Xavier

36c-24c yang. 8c+40

Which student wrote the correct expression?

Answer 1

wyatt answered correctly

Explanation:

Answer 2

Wyatt

Explanation:

Tanya: 32c+16cd=16c(2+d)

• The GCD of the terms is 16c

Wyatt : 8c-48cd=8c(1-6d)

• The GCD of the terms is 8c

Xavier :36c-24c =12c(3-2)

• The GCD of the terms is 12c

Yang: 8c+40=8(c+5)

• The GCD of the terms is 8

Since the expression is required to have a GCD of 8c, Wyatt wrote the correct expression.