Question

The product of 2/5a^2x and -1/5x^2a is
A. -1/5a^3x^3
B. 1/5a^3x^3
C. -2/25a^3x^3

Answer 1

Breakdown of the parts:


`(2)/(5) * -(1)/(5) = -(2)/(25)`


`a^2 * a^1 = a^(2+1) = a^3`


`x * x^2 = x^(1 + 2) = x^3`


`(2)/(5) a^(2)x * -(1)/(5) x^(2)a = - (2)/(25) a^3x^3`
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Answer: C
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