If s(x) = 2-x² and t(x) = 3x, which value is equivalent to (sot)(-7)?
1 answer:
Answer:
-14+63x²
Step-by-step explanation:
(sot)=s(tx)
=s(3x)
=2-(3x)²
=2-9x²
(sot)(-7)=-7(2-9x²)
=-14+63x²
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