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I. 2x2 – 10x – 48 = 0 => 2x2 – 16x + 6x – 48 = 0 => 2x(x – 8) + 6(x – 8) = 0 => (x – 8) (2x + 6) = 0 => x = 8, -3 II. y2 – 16y – 297 = 0 => y2 – 27y + 11y – 297 = 0 => y(y – 27) + 11(y – 27) = 0 => (y – 27) (y + 11) = 0 => y = 27, -11 Hence, relationship between x and y cannot be established.
(22² × 8²) ÷ (92.4 ÷ 4.2) =? × 32
{(123 + ? × 28) – 1254} × (2328 ÷ 97 – 13) = 8195
Solve for ?.
?² = 37% of 800 – 14 × 18+ 5! - 20
6612 ÷ 19 - ?% of 240 = -2196
(1/8) × (256 × 2)/(8 × 4) + ?3 = 1730
Simplify the following expression:
84 - [21 - {14 - (25 - 16 + 8) }] ÷ 3 X 6
4? + 82 = 22% of 300
779 + 136 – 334 = 270 + 121 + ?