Question

which of these is a factor in this expression 6z^4 - 4 + 9 (y^3 + 9) A. 6z^4 - 4B. -4 +9 (y^3 +9)C. (y^3 + 9)D. 9 ( y^3 +9)

Answer 1

A factor is a term that is multiplying another term.

The expression (6z^4 - 4) is adding to another term.

The expression (-4 + 9(y^3 + 9)) is also adding to another term.

The expression (y^3 + 9) is multiplying the number 9.

And the expression 9(y^3 + 9) is adding to another term.

Therefore the correct option is C.