If s(x) = 2 - x2 and t(x) = 3x, which value is equivalent to (s*t)(-7)

1.	If s(x) = 2 - x2 and t(x) = 3x, which value is equivalent to (s*t)(-7)?
Answer» *If s(x) = 2 - x²and t(x) = 3x, which value is equivalent to (st)(-7)? Solution:**

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