SAT Math Practice Question #38608 - SATify | SATify

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SAT Math Practice Question #38608 - SATify | SATify

#38608

algebra

exponents

medium

60 sec

Which expression is equivalent to $(2 x^{3} y^{- 2} z^{5}) (4 x^{- 1} y^{4} z^{2})$ , where $x$ , $y$ , and $z$ are positive?

A.

$8 x^{2} y^{2} z^{7}$

B.

$6 x^{2} y^{2} z^{7}$

C.

$8 x^{- 3} y^{- 8} z^{10}$

D.

$8 x^{4} y^{- 6} z^{3}$