I. x2 - 20x + 96 = 0
II. y2 - 23y + 22 = 0
I. 88x² - 13 x – 56 = 0
II. 15 y² + 41 y + 28 = 0
I. 40x² + 81x + 35 = 0
II. 63y² + 103y + 42 = 0
I. x² - 19x + 84 = 0
II. y² - 25y + 156 = 0
I. p² - 10p +21 = 0
II. q² + q -12 = 0
I. 5x² -14x + 8 = 0
II. 2y² + 17y + 36 = 0
I. 2 x ² + x – 1 = 0
II. 2 y ² - 3 y + 1 = 0
...I. 3p² - 14p + 15 = 0
II. 15q² - 34q + 15 = 0
What is the speed of the stream if a ship takes 15 hours to travel 240 km in calm waters, given that the ratio of its speed against the current to its s...
I. 144x² - 163x - 65 = 0
II. 91y² - 128y -48 = 0