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5x2 = 100
x2 = 20 (I can divide both sides by 5 without altering the value of the variable--according to the division property.)
x = ±√20 (The square root property says I can take the square root of both sides without altering the value of the variable.)
x = ±2√5 (simplify the radical)
x2 = 20 (I can divide both sides by 5 without altering the value of the variable--according to the division property.)
x = ±√20 (The square root property says I can take the square root of both sides without altering the value of the variable.)
x = ±2√5 (simplify the radical)
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answered 6 months ago
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