Сократите дробь 1)х²-5х-24/х²-6х-27 2)а²-6/а²-2√6а+6 - вопрос №7456190152462726266 от Koskool 22.07.2021 18:01

Question

Алгебра: Сократите дробь 1)х²-5х-24/х²-6х-27 2)а²-6/а²-2√6а+6

Koskool · Answer

1x²-5x-24=0x1+x2=5 U x1*x2=-24⇒x1=-3 U x2=8x²-6x-27=0x1+x2=6 U x1*x2=-27⇒x1=-3 U x2=9(x²-5x-24)/(x²-6x-27)=(x+3)(x-8)/(x+3)(x-9)=(x-8)/(x-9)2(a²-6)/(a²-2√6a+6)=(a-√6)(a+√6)/(a-√6)²=(a+√6)/(a-√6)...