Rozwiąż równanie:
a)-2(x+3)-3(-22x-1)-4=0
b)5(-2+Y)=7(-Y)+1)
f)2x(x-1)=2x2+4
a)
-2(x+3)-3(-22x-1)-4=0
-2x-6+66x+3-4=0
64x-7=0 /+7
64x=7 /:64
x=7/64
b)
5(-2+y)=7(-y+1)
-10+5y=-7y+7 /+10
5y=-7y+17 /+7y
12y=17 /:12
y=17/12
c)
2x(x-1)=2x^2+4
2x^2-2x=2x^2+4 /-2x^2
-2x=4 /:(-2)
x=4/(-2)
x=(-2)
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a)
-2(x+3)-3(-22x-1)-4=0
-2x-6+66x+3-4=0
64x-7=0 /+7
64x=7 /:64
x=7/64
b)
5(-2+y)=7(-y+1)
-10+5y=-7y+7 /+10
5y=-7y+17 /+7y
12y=17 /:12
y=17/12
c)
2x(x-1)=2x^2+4
2x^2-2x=2x^2+4 /-2x^2
-2x=4 /:(-2)
x=4/(-2)
x=(-2)