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an-esl-learner
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No,because 121 = 11^2 (11 x 11)
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x^3 - x^2 - 18x + 18 = 0 (x^3 - x^2) - (18x - 18) = 0 x^2(x - 1) - 18(x - 1) = 0 (x - 1)(x^2 - 18) = 0 x - 1 = 0 x = 1 x^2 - 18 = 0 x^2 = 18 x = ±â18 x = ±â(2 * 3^2) x = ±3â2 â´ x = 1, ±3â2
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x^3 - x^2 - 18x + 18 = 0 (x^3 - x^2) - (18x - 18) = 0 x^2(x - 1) - 18(x - 1) = 0 (x - 1)(x^2 - 18) = 0 x - 1 = 0 x = 1 x^2 - 18 = 0 x^2 = 18 x = ±â18 x = ±â(2 * 3^2) x = ±3â2 â´ x = 1, ±3â2
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2/5 + 1/4 = x - 1/2 x = 2/5 + 1/4 + 1/2 x = (2 x 4)/(5 x 4) + (1 x 5)/(4 x 5) + (1 x 10)/(2 x 10) x = 8/20 + 5/20 + 10/20 x = 23/20 (1.15)
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2/5 + 1/4 = x - 1/2 x = 2/5 + 1/4 + 1/2 x = (2 x 4)/(5 x 4) + (1 x 5)/(4 x 5) + (1 x 10)/(2 x 10) x = 8/20 + 5/20 + 10/20 x = 23/20 (1.15)
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1/8 x 100% = 100/8 % = 12 1/2 % (12.5%)
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1/8 x 100% = 100/8 % = 12 1/2 % (12.5%)
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1/8 x 100% = 100/8 % = 12 1/2 % (12.5%)
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2/5 + 1/4 = x - 1/2 x = 2/5 + 1/4 + 1/2 x = (2 x 4)/(5 x 4) + (1 x 5)/(4 x 5) + (1 x 10)/(2 x 10) x = 8/20 + 5/20 + 10/20 x = 23/20 (1.15)
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x^3 - x^2 - 18x + 18 = 0 (x^3 - x^2) - (18x - 18) = 0 x^2(x - 1) - 18(x - 1) = 0 (x - 1)(x^2 - 18) = 0 x - 1 = 0 x = 1 x^2 - 18 = 0 x^2 = 18 x = ±â18 x = ±â(2 * 3^2) x = ±3â2 â´ x = 1, ±3â2