Question

нужно сократить дробь (8 класс) :

3х^2+х-2 / 5х^2+4х-1

а^2-6а+9 / 2а^2-а-15

Answer 1

$1)\frac{ 3x ^ { 2 } +x-2 }{ 5x ^ { 2 } +4x-1 } = \frac{\left(3x-2\right)\left(x+1\right)}{\left(5x-1\right)\left(x+1\right)} = \frac{3x-2}{5x-1} \\ 2)\frac{ a ^ { 2 } -6a+9 }{ 2a ^ { 2 } -a-15 } = \frac{\left(a-3\right)^{2}}{\left(a-3\right)\left(2a+5\right)} = \frac{a-3}{2a+5}$