isa2337 isa2337

02-11-2019
Mathematics

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If f(x)= 3x^2 + 3x^1/2 +3x what is the value of f(-9)

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tchrseercalf tchrseercalf

05-11-2019

Answer:

216 + 9i

Step-by-step explanation:

Given: f(x) = 3x² + 3[tex]x^{1/2}[/tex] + 3x

When x = -9, f(x) equals to;

3(-9)² + 3(-9[tex])^{1/2}[/tex] + 3(-9)

243 + 3(3i) - 27

243 + 9i - 27

216 + 9i

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