Question

Сократите дробь
а) x^2+2x/7x
б) 2x^2-5x-12/x^2-16

Answer 1

a)x^2+2x/7x

x*(x+2)\7x

x+2\7

б)2x^2-5x-12/x^2-16

2x^2+3x-8x-12\(x-4)*(x+4)

x*(2x+3)-4(2x+3)\(x-4)*(x+4)

(2x+3)*(x-4)\(x-4)*(x+4)

2x+3\x+4