Kelley Osborne
06/29/2023 · Senior High School
5. Evaluar los valores de \( f(3) \) en la función \( f(x)=3 x^{3}+4 x^{2}-8 \)
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Tutor-Verified Answer
Step-by-step Solution
Substitute \( x=3 \) into the expression \( 3x^3+4x^2-8 \).
Evaluate the expression by following steps:
- step0: Evaluate:
\(3x^{3}+4x^{2}-8\)
- step1: Substitute:
\(3\times 3^{3}+4\times 3^{2}-8\)
- step2: Calculate:
\(3^{4}+4\times 3^{2}-8\)
- step3: Multiply the terms:
\(3^{4}+36-8\)
- step4: Evaluate the power:
\(81+36-8\)
- step5: Calculate:
\(109\)
El valor de \( f(3) \) en la función \( f(x)=3x^{3}+4x^{2}-8 \) es 109.
Quick Answer
El valor de \( f(3) \) es 109.
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