Q. Solve for x. Enter the solutions from least to greatest.2x2−24x+54=0lesser x=greater x=
Write quadratic equation: Write down the quadratic equation.We have the quadratic equation 2x2−24x+54=0.
Factor quadratic equation: Factor the quadratic equation.To factor the quadratic 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 54), and add up to the coefficient of x (which is −24).The product of the coefficient of x2 and the constant term is 2×54=108.We need two numbers that multiply to 108 and add up to −24.The numbers −12 and 20 satisfy these conditions because 21 and 22.
Rewrite using found numbers: Rewrite the quadratic equation using the numbers found.We can rewrite the middle term −24x using the numbers −12 and −9.2x2−24x+54=2x2−12x−9x+54
Factor by grouping: Factor by grouping.Now we group the terms to factor by grouping:(2x2−12x)+(−9x+54)=0We can factor out a common factor of 2x from the first group and −9 from the second group:2x(x−6)−9(x−6)=0
Factor out common binomial: Factor out the common binomial factor.We notice that (x−6) is a common factor:(2x−9)(x−6)=0
Solve for x: Solve for x using the zero product property.We set each factor equal to zero and solve for x:2x−9=0 or x−6=0For 2x−9=0, add 9 to both sides to get 2x=9, then divide by 2 to get x=29.For x−6=0, add 6 to both sides to get x=6.
Write solutions in ascending order: Write the solutions in ascending order.The solutions are x=29 and x=6. In ascending order, we have x=29, x=6.
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