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3 years ago

I need help on this math question?

Mathematics

1 answer:

Jet001 [13]3 years ago

8 0

Answer: D

Step-by-step explanation:

From the equation given , ( -3)⁰(2x⁻¹y⁻¹)²

Recall :From the laws of indicies,

x⁰ = 1 ,and (xᵃ)ᵇ = xᵃ ˣ ᵇ = xᵃᵇ. and x⁻¹ = 1/ₓ

Therefore,

(-3)⁰ = 1,

( 2x⁻¹y⁻1 )² = 2²x⁻¹ ˣ ²y⁻¹ x ²

= 2²x⁻²y⁻²

=4x⁻²y⁻²

Now going by the law above, the expression will be

=4/ₓ²y²

So the answer is D

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I need help on this math question?​

I need help on this math question?