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What is the value of y ^(x ) +(2x -...

What is the value of ` y ^(x ) +(2x - 2y ) ` when x=2 and y=-3 ?

A

`-10`

B

`1`

C

`7`

D

`19`

Text Solution

AI Generated Solution

The correct Answer is:
To find the value of the expression \( y^x + (2x - 2y) \) when \( x = 2 \) and \( y = -3 \), we will follow these steps: ### Step 1: Substitute the values of \( x \) and \( y \) into the expression. Given: - \( x = 2 \) - \( y = -3 \) The expression becomes: \[ y^x + (2x - 2y) = (-3)^2 + (2(2) - 2(-3)) \] ### Step 2: Calculate \( y^x \). Now, calculate \( (-3)^2 \): \[ (-3)^2 = 9 \] ### Step 3: Calculate \( 2x - 2y \). Next, calculate \( 2(2) - 2(-3) \): \[ 2(2) = 4 \] \[ -2(-3) = 6 \] So, \[ 2x - 2y = 4 + 6 = 10 \] ### Step 4: Combine the results. Now, we combine the results from Step 2 and Step 3: \[ y^x + (2x - 2y) = 9 + 10 = 19 \] ### Final Answer: Thus, the value of the expression when \( x = 2 \) and \( y = -3 \) is: \[ \boxed{19} \] ---
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