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I. 4x2 + 9x - 9 = 0
II. 4y2 - 19y + 12 = 0
I. x2 - 20x + 96 = 0
II. y2 - 23y + 22 = 0
I. p2 – 2p – 15 = 0
II. q2 + 4q – 12 = 0
I. 4x2 – 53x – 105 = 0
II. 3y2 – 25y + 48 = 0
I. 14p² + 9p - 8 = 0
II. 4q² - 19q + 12 = 0
I. 104x² + 9x - 35 = 0
II. 72y² - 85y + 25 = 0
I. 4x2+ 3√7 x-7 =0
II. 7y2+ 4√7 y-5=0
I. 5x² = 19x – 12
II. 5y² + 11y = 12
Between what values of x is the expression 19x - 2x2 - 35 positive?
I. y² - 7 y – 18 = 0
II. x² + 10 x + 16 = 0