8. Compute (T + 2S)(x1, x2, x3, X4), where X2 + 2x3 x4), (x2 ...

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8. Compute (T + 2S)(x1, x2, x3, X4), where X2 + 2x3 – x4), (x2 – x3 + 2x4, x1 + x3 – x4). T(x1, x2, x3, X4) = (x1 – x2 + x3, x1 – - S(r1, x2, 23, 14)= - 8. Compute (T + 2S)(x1, x2, x3, X4), where X2 + 2x3 – x4), (x2 – x3 + 2x4, x1 + x3 – x4). T(x1, x2, x3, X4) = (x1 – x2 + x3, x1 – - S(r1, x2, 23, 14)= -