Find the value of x and y
1 answer:
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Answer:
Step-by-step explanation:
We can list the possible rational roots of this polynomial using the Rational Root Theorem. This theorem states that all the possible rational roots of an equation follow the structure , where <u>p is any of the factors of the constant term and q is any of the factors of the leading coefficient</u>.
In this example, -15 is the constant term and 1 is the leading coefficient ( has a coefficient of 1).
The factors of -15 are , while the factors of 1 are
. <em>p </em>is can be any one of the factors of -15, while <em>q</em> can be any of the factors of 1.
The possible roots can be any of the numbers on the top divided by any of the numbers on the bottom. Since dividing by 1 or -1 won't change any of the numbers on the top, the rational roots of this function are .
One of the indicies rules is:
![{a}^{ \frac{m}{n} } = \sqrt[n]{ {a}^{m} }](https://tex.z-dn.net/?f=%20%7Ba%7D%5E%7B%20%5Cfrac%7Bm%7D%7Bn%7D%20%7D%20%20%3D%20%20%5Csqrt%5Bn%5D%7B%20%7Ba%7D%5E%7Bm%7D%20%7D%20)
As you "root the bottom and power the top"
Using this format, we can see that 3rdrt8^x can be written as 8^x/3
By the way, 3rdrt8 means 3rd root of 8
As you "root the bottom and power the top"
Using this format, we can see that 3rdrt8^x can be written as 8^x/3
By the way, 3rdrt8 means 3rd root of 8
Answer:
-15
Step-by-step explanation:
1/-13
The reciprocal is
Because of the law of indices,
We'll have
= -13.
-1/2
The reciprocal is
1 ÷ -1/2
Because of the law of indices,
We'll have
= -2
Therefore, the sum would be -13 + (-2) which would be equals to -15.