Dengan penjelasannya y k.besok di kumpul.pleass

Dengan penjelasannya y k.besok di kumpul.pleass

$frac{ {x}^{2} - 25 {y}^{2} }{ {x}^{2} - 5xy} \ = frac{(x + 5y)(x - 5y)}{x(x - 5y)} \ = frac{x + 5y}{x}$

$frac{2c + 3}{8} - frac{3c - 2}{6} \ = frac{3(2c + 3)}{24} - frac{4(3c - 2)}{24} \ = frac{6c + 9 - 12c + 8}{24} \ = frac{ - 6c + 17}{24}$

$frac{3}{ {a}^{2} - 3 } - frac{2}{a + 1} \ = frac{3(a + 1) - 2( {a}^{2} - 3)}{( {a}^{2} - 3)(a + 1) } \ = frac{3a + 3 - 2 {a}^{2} + 6}{ {a}^{3} + {a}^{2} - 3a - 3} \ = frac{ - 2 {a}^{2} +3a+ 9 }{{a}^{3} + {a}^{2} - 3a - 3}$