Exercise
$3x^2-20x+7$
Step-by-step Solution
Learn how to solve completing the square problems step by step online. Factor the expression 3x^2-20x+7. Use the complete the square method to factor the trinomial of the form ax^2+bx+c. Take common factor a (3) to all terms. Add and subtract \displaystyle\left(\frac{b}{2a}\right)^2. Factor the perfect square trinomial x^2+-\frac{20}{3}x+\frac{100}{9}. Multiply the fraction and term in - \frac{10}{3}.
Factor the expression 3x^2-20x+7
Final answer to the exercise
$3\left(x-\frac{10}{3}\right)^2-\frac{79}{3}$