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Start learning 50% faster. Sign in nowI. 2x² - 9x + 10 = 0 2x² - 5x - 4 x + 10 = 0 x (2 x – 5) – 2(2 x – 5) = 0 (x – 2) (2 x – 5) = 0 x = 2, 5/2 II. 3y² + 11y + 6 = 0 3y² + 2y + 9 y + 6 = 0 y (3 y + 2) + 3(3 y + 2) = 0 y = -3, -2/3 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
...