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ELEN [110]
3 years ago
11

I need help guys thanks so much

Mathematics
1 answer:
Nastasia [14]3 years ago
7 0

Answer: A & C

Step-by-step explanation:

i=\sqrt{-1}

\sqrt{-1}   *\sqrt{4} =\sqrt{-4}

You can also simplify the above by taking the -4 out of the radical

It becomes 2 x \sqrt{-1}, which can be simplifed to C

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Answer:

The given expression  \frac{a^3}{ab^{-4}} after the negative exponents have been eliminated becomes \frac{a^3b^{4}}{ab^{2}}

Step-by-step explanation:

Given expression \frac{a^3b^{-2}}{ab^{-4}}

We have to write expression after the negative exponents have been eliminated and  a ≠ 0 and b ≠ 0.

Consider the given expression \frac{a^3b^{-2}}{ab^{-4}}  

We have to eliminate the negative exponents,

Using  property of exponents, x^{-m}=\frac{1}{x^m}  we have ,

b^{-2}=\frac{1}{b^2} \\\\b^{-4}=\frac{1}{b^4}

Substitute, we get,

\frac{a^3}{ab^{-4}} becomes  \frac{a^3b^{4}}{ab^{2}}

Thus, the given expression  \frac{a^3}{ab^{-4}} after the negative exponents have been eliminated becomes \frac{a^3b^{4}}{ab^{2}}

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