If s(x) =2-x^2and t(x) =3x which value is equivalent to (s·t)(-7)
2 answers:
Answer:
987
Step-by-step explanation:
(s.t)(x) = s(x) × t(x) = 3x(2 - x²) = 6x - 3x³
To evaluate (s.t)(- 7) substitute x = - 7 into the product
(s.t)(- 7) = 6(- 7) - 3(- 7)³ = - 42 + 1029 = 987
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Step-by-step explanation:
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Answer:
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