(−7a−4b7)(3a2b−4)

(1 point)
Responses

−21b3a2
the fraction with numerator negative 21 b cubed and denominator A squared

−21a6b3
the fraction with numerator negative 21 and denominator A to the 6th power b cubed

−21a2b3
the fraction with numerator negative 21 A squared and denominator b cubed

−21a8b28

1 answer

-21a^8b^28

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