Question

Multiply: a^−4(a^2)(a^−5)

Answer 1

When multiplying exponential expressions, we can add the exponents of the same base. Using this rule, we can simplify the expression as follows:

a^−4(a^2)(a^−5) = a^(-4+2-5) = a^(-7)

Therefore, the simplified expression is a^(-7).

Option B

Answer 2

a^(-7)

Explanation:

To multiply these terms, we can add the exponents of the same base, then simplify if possible.

a^−4(a^2)(a^−5) = a^( -4+2-5 ) = a^(-7)

Therefore,

a^−4(a^2)(a^−5) = a^(-7)