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Simplifying (x2 + 5)(x2 + -5) = -10 Reorder the terms: (5 + x2)(x2 + -5) = -10 Reorder the terms: (5 + x2)(-5 + x2) = -10 Multiply (5 + x2) * (-5 + x2) (5(-5 + x2) + x2(-5 + x2)) = -10 ((-5 * 5 + x2 * 5) + x2(-5 + x2)) = -10 ((-25 + 5x2) + x2(-5 + x2)) = -10 (-25 + 5x2 + (-5 * x2 + x2 * x2)) = -10 (-25 + 5x2 + (-5x2 + x4)) = -10 Combine like terms: 5x2 + -5x2 = 0 (-25 + 0 + x4) = -10 (-25 + x4) = -10 Solving -25 + x4 = -10 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '25' to each side of the equation. -25 + 25 + x4 = -10 + 25 Combine like terms: -25 + 25 = 0 0 + x4 = -10 + 25 x4 = -10 + 25 Combine like terms: -10 + 25 = 15 x4 = 15 Simplifying x4 = 15 Reorder the terms: -15 + x4 = 15 + -15 Combine like terms: 15 + -15 = 0 -15 + x4 = 0 The solution to this equation could not be determined.
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