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21 December, 13:46

Solve for x. Simplify completely.

x^2-9=55

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  1. 21 December, 14:30
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    Simplifying x2 + - 9 = 55 Reorder the terms: - 9 + x2 = 55 Solving - 9 + x2 = 55 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9' to each side of the equation. - 9 + 9 + x2 = 55 + 9 Combine like terms: - 9 + 9 = 0 0 + x2 = 55 + 9 x2 = 55 + 9 Combine like terms: 55 + 9 = 64 x2 = 64 Simplifying x2 = 64 Take the square root of each side: x = {-8, 8}
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