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Exercise

$5x^2-18x-20$

Step-by-step Solution

Learn how to solve problems step by step online. Factor the expression 5x^2-18x+-20. Use the complete the square method to factor the trinomial of the form ax^2+bx+c. Take common factor a (5) to all terms. Add and subtract \displaystyle\left(\frac{b}{2a}\right)^2. Factor the perfect square trinomial x^2+-\frac{18}{5}x+\frac{81}{25}. Simplify the addition \left(x- \frac{9}{5}\right)^2-4-\frac{81}{25}.
Factor the expression 5x^2-18x+-20

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Final answer to the exercise

$5\left(x-\frac{9}{5}\right)^2-\frac{181}{5}$

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  • FOIL Method
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