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14.99% of 7820 + 5535.25 ÷ 123.001 - ? = 84 15/100 × 7820 + 5535 ÷ 123 - ? = 84 1173 + 45 - ? = 84 ? = 1218 – 84 = 1134
I. p2 - 53p + 672 = 0
II. q2 - 27q + 126 = 0
I: 2x² - 8x + 6 = 0
II: 3y² - 12y + 9 = 0
I. 66x² - 49x + 9 = 0
II. 46y² - 37y - 30 = 0
I. x2 + 25x + 154 = 0
II. y2 + 27y + 181 = 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. 10x² - 11x + 3 = 0
II. 42y² - 23y – 10 = 0
I. 20x² - 93x + 108 = 0
II.72y² - 47y - 144 = 0
I. 8x2- 2x – 15 = 0
II. 12y2- 17y – 40 = 0
I. (2x-3)3+ 1/((2x-3)³)=2
II. 4y²+(y+8)^2= 157
