The antonym of "interesting" is "dull," which means lacking interest or excitement. "Interesting" means arousing curiosity or interest.
I. 6 y² + 11 y – 7= 0
II. 21 x² + 5 x – 6 = 0
I. 66x² - 49x + 9 = 0
II. 46y² - 37y - 30 = 0
I. p2+ 2p – 8 = 0 II. q2 – 5q + 6 = 0
I. x² + 11x + 24 = 0
II. y² + 17y + 72 = 0
I. 3x2 = 2x2 + 9x – 20
II. 3y2 = 75
I.8(x+3)+ 8(-x)=72
II. 5(y+5)+ 5(-x)=150
I. 35x² - 51x + 18 = 0
II. 30y² + 17y – 21 = 0
I. 5q = 7p + 21
II. 11q + 4p + 109 = 0
I. x2 = 10
II. y2 - 9y + 20 = 0
...I. 20x² - 93x + 108 = 0
II.72y² - 47y - 144 = 0
