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I. 4x2 + 25x + 36 = 0 4x2 + 9x + 16 x + 36 =0 x (4x + 9) + 4 (4x + 9) = 0 (x + 4) (4x + 9) = 0 x = - 4, -9/4 II. 2y2 + 5y + 3 = 0 2y2 + 3y + 2y + 3 = 0 y (2y + 3) + 1 (2y + 3) = 0 (y + 1) (2y + 3) = 0 y = - 1, -3/2 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 = ?