Question

Which of the following is equivalent to 45x-5z.

A. 5(9x-z). B. 5x(45x-z). C. 10(9x-z). D. 5(9x^2-z) please answer thanks

Answer 1

A.

Explanation:

Given the expression, 45x - 5z, you have to think what can be factored out of BOTH terms.

we know 5 is a factor of both terms, so it can be taken out

=

5(9x - z), nothing else can be factored

Answer 2

A. 5(9x-z)

Explanation:

45x-5z

We can factor out a 5 from each term

5(9x -z)