Polynomials

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Let t(x) = 3x - 8 and s(t(x)) = x^2 + 8x - 2. Find s(1).

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1 = 3x - 8

9 = 3x

3 = x

s(t(3)) = 3² + 8(3) - 2

s( 1 ) = 9 + 24 - 2

s( 1 ) = 31

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