3 years ago

EJERCICIO C - Write 4 sentences for each of the following ser context: DOCTOR. Look at the

Spanish

1 answer:

kati45 [8]3 years ago

5 0

1. I have to order a new cookbook today.

2. I have to go to a conference with some colleagues.

3. I should go see my patient with diabetes.

4. Today, Monday, I can see more patients.

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I'm helping my son with his algebra (attempting to anyway). We've got a problem that I can't quite understand... Simplify the e

musickatia [10]

$(3x^{-3})^2(-2xy)}$

The square (²) can be distributed to each factor inside those parentheses.
3² = 3 × 3 = 9
as for the x^-3, we want to multiply our exponents together, leaving x^-6.

$(9x^{-6})(-2xy)$

Note that since multiplication is commutative/associative, we can multiply these together in whatever order to simplify.

The x on the right can be rewritten as x¹. Multiply that and x^-6 together to get x^-5. (we just add the exponents)
As for the 9 and -2, multiply those together to get -18.

Now we have $-18x^{-5}y$ .

Lastly, if you don't want a negative exponent in your answer:
It can be flipped to the bottom because of this property:

$x^{-n}=\frac{1}{x^n}$

This leaves us with $\boxed{\frac{-18y}{x^5}}$