Q. Solve for x. Enter the solutions from least to greatest.2x2−16x+14=0 lesser x=□ greater x=□
Identify quadratic equation: Identify the quadratic equation to solve.The given quadratic equation is 2x2−16x+14=0. We need to find the values of x that satisfy this equation.
Factor the equation: Factor the quadratic equation if possible.To factor the equation, we need to find two numbers that multiply to give the product of the coefficient of x2 (which is 2) and the constant term (which is 14), and add up to the coefficient of x (which is −16).The product of 2 and 14 is 28. We need two numbers that multiply to 28 and add up to −16.
Find the two numbers: Find the two numbers that fit the criteria.The numbers −14 and −2 multiply to give 28 and add up to −16.So we can write −16x as −14x−2x.The equation becomes 2x2−14x−2x+14=0.
Factor by grouping: Factor by grouping.We can group the terms as follows: (2x2−14x)−(2x−14)=0.Now, factor out the common factors in each group: 2x(x−7)−2(x−7)=0.We can see that (x−7) is a common factor.
Factor out common factor: Factor out the common factor.The equation can now be written as (2x−2)(x−7)=0.We can factor out a 2 from the first term to simplify it further: 2(x−1)(x−7)=0.
Solve for x: Solve for x.We have two factors set to zero: (x−1)=0 and (x−7)=0.Solving each equation for x gives us x=1 and x=7.
Write the solutions: Write the solutions in ascending order.The lesser value of x is 1, and the greater value of x is 7.
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