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I. 56x² - 99x + 40 = 0 56x² - 35x – 64x + 40 = 0 7x(8x – 5) – 8(8x – 5) = 0 (7x – 8) (8x – 5) = 0 x = 8/7, 5/8 II. 8y² - 30y + 25= 0 8y² - 10y - 20y + 25= 0 2y(4y – 5) – 5(4y - 5) = 0 (2y – 5) (4y – 5) = 0 y = 5/2, 5/4 Hence x < y
24.052 + 14.03 × 22.99 – 28.18 × 14.94= ?
12.99 × 9.99 + ? × 7 + 240.001 = 21.012
`root(3)(725.87)` `-:` `sqrt(81.033)` + 49.88% of 809.77 = ? - (14.78 `xx` 52.2)
? = 782.24 + 1276.97 – 4.992
15.98% of 399.76 × 2.98 = ?% of 599.93
10.232 + 19.98% of 619.99 = ? × 6.99
228.45 + 19.06² + ?³ = √1024.97 * 33.12
Solve the given equation for ?. Find the approximate value.
(3/5 of 399.78 + 7/9 of 360.15) ÷ (√63.94 + 25% of 383.94) = ?
...14.96% of 120.03 - 107.99 + 88.93% of 199.87 = ?