Which expression is equivalent to the following for all values where each variable is defined?
(2x^5y)(4xy^-2)
A. 8x^6y
B. (8x^6)/y
C. (6x^5)/y^2
D. 6x^6y
The expression (2x^5y)(4xy^-2) can be simplified by multiplying the coefficients and adding the exponents of the variables:
(2x^5y)(4xy^-2) = 2 * 4 * (x^5 * x^1) * (y^1 * y^-2) = 8x^6y^(-1+2) = 8x^6y^1
Therefore, the expression is equivalent to 8x^6y.
The correct answer is A. 8x^6y.
Wrong
Apologies for the incorrect response. Let's go through the simplification again:
(2x^5y)(4xy^-2) = 2 * 4 * x^5 * x * y * y^-2
= 8x^(5+1) * y^(1-2)
= 8x^6 * y^(-1)
= 8x^6/y
Therefore, the expression is equivalent to (8x^6)/y.
The correct answer is B. (8x^6)/y.