(1 klasa ) zadanie 3 strona 158
a) 3(2x-1)+4(1-x)
b) 2(7x+5)-6(x-2)
c) -2x(8-x)-5(x^+3x)
d) 5(3-2x)-(4x+6)*3
e) 2x+5-3x-12/3
f) 12x+16/4-10x+15/5
g) 9-6x/3-21-14x/7
h) 4(x-1)/2-3*10x-50/5
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a) 3(2x-1)+4(1-x)=6x-3+4-4x=2x+1
b) 2(7x+5)-6(x-2)=14x+10-6x+12=8x+22
c) -2x(8-x)-5(x² + 3x)=-16x+2x²-5x²-15x=-3x²-31x
d) 5(3-2x)-(4x+6) *3=
e) 2x +5 - 3x-12/3=2x+5-x-4=x+1
f) 12x+16/4 - 10x+15/5=3x+4-2x-3=x+1
g) 9-6x/3 - 21-14x/7=3-2x-3+2x=0
h)4(x-1)/2-3*10x-50/5
Nie wiem co to jest gwiazdka..
Napisz to dokończe.
a) 3(2x-1)+4(1-x)
6x - 3 +4- 4x
2x+ 1
b) 2(7x+5)-6(x-2)
14x+ 10- 6x+ 12
8x+22
c) -2x(8-x)-5(x^+3x)
-16x-+2x(do kwadratu) -5x(do kwadratu)-15x
-3x(do kwadratu)- 31x
d) 5(3-2x)-(4x+6)*3
15- 10x-12x- 18
-22x-3
e) 2x+5-3x-12/3
2x+ 5- 3x- 4
x+1
f)12x+16:4-10x+15:5
12x+4-10x+3
2x+7
g)9-6x : 3-21-14x : 7
9-2x-21-2x
-12-4x
h) 4(x-1):2-3*10x-50:5
4x-4:2-30x-10
4x-2-30x-10
-26x-12