Question
I. 2x² - 7x + 3 = 0 II. 8y² - 14y + 5 =
0Solution
I. 2x² - 7 x + 3 = 0 2x² - 6 x - x + 3 = 0 2 x (x – 3) – 1(x – 3) = 0 (2 x – 1) (x – 3) = 0 x = 3, 1/2 II. 8 y² - 14 y + 5 = 0 8 y² - 4 y - 10 y + 5 = 0 4 y(2 y – 1) – 5 (2 y – 1) = 0 y = 1/2, 5/4 Hence, relationship cannot be established between x and y.
1299.999 ÷ 325.018 × 24.996 = ?
5999.93 ÷ 60.005 × 70.002 = ? × 24.9
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
194.95 + 3.98 × 64.99 - ? = (10.99 + 9.02)2
(899.117 + 1.1121) X 72.731 = ? + 49.95 X 64.78 + 29.50
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exactvalue.)
120.02% of 599.90 + (34.78/20.89) × (47.98) = ?2 – 10.022
25.11% of 199.99 + √143.97 ÷ 6.02 = ?
999.99 + 99.99 + 99= ?