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lbvjy [14]
3 years ago
13

If s(x) =2-x^2and t(x) =3x which value is equivalent to (s·t)(-7) ​

Mathematics
2 answers:
Katarina [22]3 years ago
6 0
the answer is 24 (x) -78
lord [1]3 years ago
3 0

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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