[最も共有された！ √] ５−２ 320069
Example 18 Solve 5 X 1 1 Y 2 2 6 X 1 3 Y 2 1 Examples Example 4x x 2 − 3x 5 − 2 How Many of The Roots are Positive?5−2 = 3 × multiply 4×3 = 12 ÷ divide ÷5 = 4 / divide /5 = 4 ( ) grouping symbols 2(a−3) grouping symbols 2 a−3(bc) { } set symbols {1, 2, 3} π pi A = π r 2 ∞ infinity ∞ is endless = equals 11 = 2 approximately equal to π 314 ≠ not equal to ５−２