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Find f(-2) if f(x)= 2x^2-x+5
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Find f(-2) if f(x)= 2x^2-x+5

User Mus
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Answer:


f(x) = 2{x}^(2) - x + 5 \\ f( - 2) = 2 {( - 2)}^(2) - ( - 2) + 5 \\ f( - 2) = 2(4) + 2 + 5 \\ f( - 2) = 8 + 2 + 5 \\ \boxed{f( - 2) = 15}

  • f(-2) = 15 is the right answer.
User SSF
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Find f(-2) if f(x)= 2x^2-x+5-example-1
User Mahmoud Tantawy
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