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Simplifying (x2 + 3) + -7(x2 + 3) + 12 = 0 Reorder the terms: (3 + x2) + -7(x2 + 3) + 12 = 0 Remove parenthesis around (3 + x2) 3 + x2 + -7(x2 + 3) + 12 = 0 Reorder the terms: 3 + x2 + -7(3 + x2) + 12 = 0 3 + x2 + (3 * -7 + x2 * -7) + 12 = 0 3 + x2 + (-21 + -7x2) + 12 = 0 Reorder the terms: 3 + -21 + 12 + x2 + -7x2 = 0 Combine like terms: 3 + -21 = -18 -18 + 12 + x2 + -7x2 = 0 Combine like terms: -18 + 12 = -6 -6 + x2 + -7x2 = 0 Combine like terms: x2 + -7x2 = -6x2 -6 + -6x2 = 0 Solving -6 + -6x2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + -6x2 = 0 + 6 Combine like terms: -6 + 6 = 0 0 + -6x2 = 0 + 6 -6x2 = 0 + 6 Combine like terms: 0 + 6 = 6 -6x2 = 6 Divide each side by '-6'. x2 = -1 Simplifying x2 = -1 Reorder the terms: 1 + x2 = -1 + 1 Combine like terms: -1 + 1 = 0 1 + x2 = 0 The solution to this equation could not be determined.
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