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Simplifying 0 = (x + -7)(x2 + 7x + 49) Reorder the terms: 0 = (-7 + x)(x2 + 7x + 49) Reorder the terms: 0 = (-7 + x)(49 + 7x + x2) Multiply (-7 + x) * (49 + 7x + x2) 0 = (-7(49 + 7x + x2) + x(49 + 7x + x2)) 0 = ((49 * -7 + 7x * -7 + x2 * -7) + x(49 + 7x + x2)) 0 = ((-343 + -49x + -7x2) + x(49 + 7x + x2)) 0 = (-343 + -49x + -7x2 + (49 * x + 7x * x + x2 * x)) 0 = (-343 + -49x + -7x2 + (49x + 7x2 + x3)) Reorder the terms: 0 = (-343 + -49x + 49x + -7x2 + 7x2 + x3) Combine like terms: -49x + 49x = 0 0 = (-343 + 0 + -7x2 + 7x2 + x3) 0 = (-343 + -7x2 + 7x2 + x3) Combine like terms: -7x2 + 7x2 = 0 0 = (-343 + 0 + x3) 0 = (-343 + x3) Solving 0 = -343 + x3 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1x3' to each side of the equation. 0 + -1x3 = -343 + x3 + -1x3 Remove the zero: -1x3 = -343 + x3 + -1x3 Combine like terms: x3 + -1x3 = 0 -1x3 = -343 + 0 -1x3 = -343 Divide each side by '-1'. x3 = 343 Simplifying x3 = 343 Reorder the terms: -343 + x3 = 343 + -343 Combine like terms: 343 + -343 = 0 -343 + x3 = 0 The solution to this equation could not be determined.
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