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W(x)=3•3^x+3 +2; solve for w(-2)

User TTransmit
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3 votes

Answer:

11

Explanation:

We evaluate W(x)=3•3^x+3 + 2 at x = -2 by substituting -2 for each instance of x:

But first note that we must enclose x + 3 inside parentheses:

W(x)=3•3^(x+3) + 2.

Substituting -2 for x, we get:

W(-2)=3•3^(-2+3) + 2, or

W(-2)=3•3^(1) + 2, or

W(-2)=9 + 2 = 11

User Erik Trautman
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