Question
Find the simplified value of the given expression.
/>(6.25 × 18 – 7.1 × 5) ÷ 11 + 9 × 3 – 104 ÷ 8Solution
(6.25 × 18 – 7.1 × 5) ÷ 11 + 9 × 3 – 104 ÷ 8
= (112.5 – 35.5) ÷ 11 + 27 – 13
= 77 ÷ 11 + 27 – 13
= 7 + 27 – 13
= 21
I. 2y² - 3y – 14 = 0
II. 3x² - 7x + 4 = 0
I. 8x² + 2x – 3 = 0
II. 6y² + 11y + 4 = 0
- For what value of a does the quadratic equation x² + ax + 81 = 0 have real and identical roots?
I. √(17x) + √51 = 0  Â
II. √(4y) + 3 = 0
If the roots of the quadratic equation 5x² + 4x + 6 = 0 are α and β, then what is the value of [(1/α) + (1/β)]?
...I:Â x2Â - 33x + 242 = 0
II:Â y2Â - 4y - 77 = 0
I. x2 + (9x/2) + (7/2) = - (3/2)
II. y2 + 16y + 63 = 0
I. 2x2 + 12x + 18 = 0
II. 3y2 + 13y + 12 = 0
I. 5x2 – 18x + 16 = 0
II. 3y2 – 35y - 52 = 0
I. 63x² + 146x + 80 = 0
II. 42y² + 109y + 70 = 0