I. y² + y – 56 = 0 y² + 8y - 7y – 56 = 0 y (y + 8) – 7(y + 8) = 0 y = 7, - 8 II. 2x² + 11 x – 40 = 0 2x² - 5 x + 16x – 40 = 0 x (2 x – 5) + 8 (2x – 5) = 0 (x + 8) (2 x – 5) = 0 x = - 8, 5/2 Hence, relationship cannot be established between x and y Alternate Method: Remember whenever roots of x & y are + & - both, there is no need to find the exact value of roots. In this case, there will be always no relation between x & y. Hence relationship between x & y cannot be established.
118 × 6 + 13 + 83 = ?
What will come in the place of question mark (?) in the given expression?
(55 × 8 + 28) × 10 = ?
(13 X 11) + (19 X 3) = 400% of √?
135÷ 15 x 19 + 14807 = ? + √3249 - √9604
1240 ÷ ? = 242 + 123 – 514 × 4
(√7225 x √1225)/(√625) = ?
(512) (2/3) × √64 ÷ (512) (1/3) = (64) (?/2) ÷ (2)6
1/6+ 999*53/54 ×9 = ?
26 X √25 + 15 - 80% of 120 = ?2
540240 ÷ 24 ÷ 25 =?