4times x with an exponent of 2 plus 2 times y with an exponent of 4. x=-3 y=2
i already know the answer is 68 but can someone explain how that’s the answer ?

Step-by-step explanation:

Your equation is:

You also know that x = -3 and y = 2. You can rewrite the equation by substituting x and y with their actual values:

First, you want to do the exponentiation (meaning you want to calculate and parts). equals 9 and equals 16.

So the equation now is:

Now you want to do multiplication. equals 36 and equals 32. So you're left with:

Which equals 68.

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)

the answer is 24

step-by-step explanation: