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Start learning 50% faster. Sign in nowI. 2x2 - 15x + 25 = 0 2x2 - 5x - 10x + 25 = 0 x (2 x – 5) – 5(2 x – 5) = 0 (x – 5)(2 x – 5) = 0 x = 5, 5/2 II. 3y2 - 10y + 8 = 0 3y2 - 6 y - 4y + 8 = 0 3 y (y - 2) – 4(y – 2) = 0 (3 y – 4) (y – 2) = 0 y = 2, 4/3 Hence, x>y
21 23 26 ? 39 51
...12 3 15 ? 153 756
...3 4.5 6.75 10.125 15.1875 22.78125 ?
...In each of the following questions the number series is given. One term of the series is denoted by x. You have to calculate of value of x and by using ...
19 20 42 129 ? 2605 .
24 ? 14 16 39 88.5
...31, 16.5, 18, ?, 60.5, 154.25
11 28 47 70 ? 130
...49 121 169 289 361 ?
...12 23 65 ? 1239 7409
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