wykonaj dzialania
a) x+3/3x razy x^2/x^2-9
b) 1/x+7 razy x^2-49/7x
c) 9+6x+x^2/9-6x+x^2 podzielic na x^2/x^2-16
e) x+5/x-5 podzielic na (x^2-25)
f) x+1/x-1 podzielic na x^2+x/3x-3
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
a) (x+3)x²/3x(x²-9)= (x³+3x²)/(3x³-27x)
b)x²-49/(x+7)7x=x²-49/(7x²+49x)
c)(9+6x+x²)(x²-16)/(9-6x+x²)(x²)= (9x²+6x³+x⁴-144-96x-16x²)/(9x²-6x³+x⁴)=
=(x₄+6x³-7x²-96x-144)(x⁴-6x³+9x²)
e)(x+5)/(x-5)(x²-25)=(x+5)/(x-5)(x+5)(x-5)=1/x²+25-10x
f) (x+1)(3x-3)/(x-1)(x²+x)=(3x²-3x+3x-3)/(x³+x²-x²-x)=(3x²-3)/(x³-x)=3(x²-1)/(x)(x²-1)=3/x