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Mathematics

Answered

Let f(x) = 3x2–5, find f(-5).
A. 70
B. 71
C. 72
D.73

Answer :

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Given equation:

[tex]f(x) = 3x2 - 5[/tex]

If x=-5

Solution:

[tex]f( - 5) = 3( - 5)2 - 5 \\ = 3 \times - 5 \times 2 - 5 \\ = - 30 - 5 \\ = - 35[/tex]

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