The correct option is B ( ab )^9 ( a)^9 × ( b)^9 = [ a × b]^9 = [ a × b]^9 = (ab)^9 So, option A is correct. ...

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Exponents with Unlike Bases and Same Exponent

Simplify: -...

Question

Simplify: ${(- a)}^{9} \times {(- b)}^{9}$

{(a b)}^{9}

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{(- a b)}^{9}

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- {(a b)}^{9}

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{(a - b)}^{9}

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Solution

The correct option is B ${(a b)}^{9}$
$(- a)^{9} \times (- b)^{9} = [- a \times - b]^{9}$

= $[a \times b]^{9}$

= $(a b)^{9}$
So, option $A$ is correct.

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Similar questions

\sqrt{27 a^{3} b^{2} c^{4}} \times \sqrt[3]{128 a^{7} b^{9} c^{2}} \times \sqrt[6]{729 a b^{12} c^{2}}

\sqrt[3]{a^{3} \sqrt[3]{b^{9} \sqrt[3]{c^{27}}}}

A B C D

A (3, - 1), B (9, - 5), C (14, 0), D (9, 19)

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A = ⎡ ⎢ ⎣ \begin{matrix} 1 & 2 & 3 1 & 3 & 5 1 & 5 & 12 \end{matrix} ⎤ ⎥ ⎦

Adjoint A: ⎡ ⎢ ⎣ \begin{matrix} a & - 9 & 1 b & 9 & - 2 2 & c & 1 \end{matrix} ⎤ ⎥ ⎦

a b c

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