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Simplifying (7x2 + 1)(2x2 + 5) = 0 Reorder the terms: (1 + 7x2)(2x2 + 5) = 0 Reorder the terms: (1 + 7x2)(5 + 2x2) = 0 Multiply (1 + 7x2) * (5 + 2x2) (1(5 + 2x2) + 7x2 * (5 + 2x2)) = 0 ((5 * 1 + 2x2 * 1) + 7x2 * (5 + 2x2)) = 0 ((5 + 2x2) + 7x2 * (5 + 2x2)) = 0 (5 + 2x2 + (5 * 7x2 + 2x2 * 7x2)) = 0 (5 + 2x2 + (35x2 + 14x4)) = 0 Combine like terms: 2x2 + 35x2 = 37x2 (5 + 37x2 + 14x4) = 0 Solving 5 + 37x2 + 14x4 = 0 Solving for variable 'x'. Factor a trinomial. (5 + 2x2)(1 + 7x2) = 0Subproblem 1
Set the factor '(5 + 2x2)' equal to zero and attempt to solve: Simplifying 5 + 2x2 = 0 Solving 5 + 2x2 = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + 2x2 = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 2x2 = 0 + -5 2x2 = 0 + -5 Combine like terms: 0 + -5 = -5 2x2 = -5 Divide each side by '2'. x2 = -2.5 Simplifying x2 = -2.5 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.Subproblem 2
Set the factor '(1 + 7x2)' equal to zero and attempt to solve: Simplifying 1 + 7x2 = 0 Solving 1 + 7x2 = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 7x2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 7x2 = 0 + -1 7x2 = 0 + -1 Combine like terms: 0 + -1 = -1 7x2 = -1 Divide each side by '7'. x2 = -0.1428571429 Simplifying x2 = -0.1428571429 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.
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