Suppose that the functions s and I are defined for all real numbers x as follows. s(x)=3x² t(x)=2x Write the expressions for (t+s) (x) and (t-s) (x) and evaluate (t.s) (-1). (t+s)(x) = [ (t-s)(x) = [ (1·s) (-1) = 0 X 5

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