Abegailfalculan07viz
Answered

2. Evaluate the f(x) = - 3x3 + 2x2 + 4x - 5 if x = 3

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ReenaACviz

f(3)= - 8

Step-by-step explanation:

f(x) = - 3x3 + 2x2 + 4x - 5

f(x) = - 9x + 4x + 4x - 5

f(3) = - 9(3) + 4(3) + 4(3) - 5

f(3) = - 27 + 12 + 12 - 5

f(3) = - 8