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2 years ago

PLESE HELP ASAP!!!! Worth 15 point plz help!!

Mathematics

2 answers:

yulyashka [42]2 years ago

8 0

The last expression is correct

Y_Kistochka [10]2 years ago

3 0

Answer:

The last expression is correct

Step-by-step explanation:

We have been given the following expression for simplification;

$4^{4}*4^{-9}$

The bases of the two expressions are the same. They are both equal to 4. When multiplying numbers with the same base, we simply add their exponents. In this case our exponents are;

4 and -9

adding them we have;

4 + (-9) = -5

The simplified expression thus becomes;

$4^{-5}=\frac{1}{4^{5}}$

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Svet_ta [14]

Suppose for the moment that the inequality holds for all $a,b$ :

$(a-b)^2$

Expanding everything gives

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So one possible choice of $a,b$ could be $a=-1$ and $b=1$ . Then we get

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