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Simplifying 7(x2 + 6x + 17) = 0 Reorder the terms: 7(17 + 6x + x2) = 0 (17 * 7 + 6x * 7 + x2 * 7) = 0 (119 + 42x + 7x2) = 0 Solving 119 + 42x + 7x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '7'. 7(17 + 6x + x2) = 0 Ignore the factor 7.Subproblem 1
Set the factor '(17 + 6x + x2)' equal to zero and attempt to solve: Simplifying 17 + 6x + x2 = 0 Solving 17 + 6x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-17' to each side of the equation. 17 + 6x + -17 + x2 = 0 + -17 Reorder the terms: 17 + -17 + 6x + x2 = 0 + -17 Combine like terms: 17 + -17 = 0 0 + 6x + x2 = 0 + -17 6x + x2 = 0 + -17 Combine like terms: 0 + -17 = -17 6x + x2 = -17 The x term is 6x. Take half its coefficient (3). Square it (9) and add it to both sides. Add '9' to each side of the equation. 6x + 9 + x2 = -17 + 9 Reorder the terms: 9 + 6x + x2 = -17 + 9 Combine like terms: -17 + 9 = -8 9 + 6x + x2 = -8 Factor a perfect square on the left side: (x + 3)(x + 3) = -8 Can't calculate square root of the right side. 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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