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Rewrite the function by completing the square. {:[f(x)=2x^(2)+13 x+20],[f(x)=◻(x+◻)^(2)+◻]:}

Rewrite the function by completing the square.\newlinef(x)=2x2+13x+20f(x)=□(x+□)2+□ \begin{array}{l} f(x)=2 x^{2}+13 x+20 \\ f(x)=\square(x+\square)^{2}+\square \end{array}

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Full solution

Q. Rewrite the function by completing the square.\newlinef(x)=2x2+13x+20f(x)=□(x+□)2+□ \begin{array}{l} f(x)=2 x^{2}+13 x+20 \\ f(x)=\square(x+\square)^{2}+\square \end{array}
  1. Divide total amount: To solve the problem, we need to divide the total amount of electrical tape needed by the amount of tape on each roll.\newlineCalculation: 8,000 cm8,000 \, \text{cm} (total tape needed) ÷2,000 cm\div 2,000 \, \text{cm} (tape per roll) =4= 4 rolls

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