Oblicz
a)
3(x-1)+2=8
b)
-3/x+1 = 6/3x-3
Zapisz w prostrzej postaci
3x-2-(15-x)
(x+3y)² -9y²-x²
(x+8)(x-8)-(x²-8)
1.a
3(X-1)+2=8
3x-3+2=8
3x=3-2+8
3x=9/:3
x=3
2
3x-2-(15-x)=3x-2-15+x=4x-17
(x+3y)²-9y²-x²=x²+6xy+9y²-9y²-x²=6xy
(x+8)(x-8)-(x²-8)=x²-8x+8x-64-x²+8=-64+8=-56
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
1.a
3(X-1)+2=8
3x-3+2=8
3x=3-2+8
3x=9/:3
x=3
2
3x-2-(15-x)=3x-2-15+x=4x-17
(x+3y)²-9y²-x²=x²+6xy+9y²-9y²-x²=6xy
(x+8)(x-8)-(x²-8)=x²-8x+8x-64-x²+8=-64+8=-56