Question

usun nawiasy i wykonaj redukcje wyrazow podobnych

a) 6x+(7+4x)

b)3x+(-4x-5y)

c)b+(2a-4b+9)

d)a+(1-7a)-6a

e)(3a-6b)+(9a-5+b)

f)x<do potegi 2> +(2x<do potegi 2 >-z+x)+x

g)(6z-4z<do potegi 2>)+(-5z+6z<do potegi drugiej>

h)5/6ado potegi 2+(3/4a-1/6a<do potegi drugiej>

wykonaj dzialania

a)4x-(2x+7)

b)3a-(3a-2)

c)2x+2y-(x-y)

d)3b-(-9-b)

e) (6a+3b)-(12a+5b)

f) x<do potegi 2 > + y <do potegi drugiej> +z <do potegi 2 > -(-x<do potegi drugiej>-y< do potegi drugiej>-z <do potegi drugiej )

Answer 1

a) 6x+(7+4x)=6x+7+4x=10x+7

b)3x+(-4x-5y)=3x-4x-5y=-x-5y

c)b+(2a-4b+9)=b+2a-4b+9=-3b+2a+9

d)a+(1-7a)-6a=a+1-7a-6a=-12a+1

e)(3a-6b)+(9a-5+b)=3a-6b+9a-5+b=12a-5b-5

f)x² +(2x²-z+x)+x=x²+2x²-z+x+x=3x²+2x-z

g)(6z-4z²)+(-5z+6z²)=6z-4z²-5z+6z²=2z²+z

h)5/6a²+(3/4a-1/6a²)=5/6a²+¾a-⅙a²=4/6a²+¾a=⅔a²+¾a

wykonaj dzialania

a)4x-(2x+7)=4x-2x-7=2x-7

b)3a-(3a-2)=3a-3a+2=2

c)2x+2y-(x-y)=2x+2y-x+y=x+3y

d)3b-(-9-b)=3b+9+b=4b+9

e) (6a+3b)-(12a+5b)=6a+3b-12a-5b=-6a-2b

 

f) x² + y² +z² -(-x²-y²-z²)=x²+y²+z²+x²+y²+z²=2x²+2y²+2z²

 

 

liczę na naj ;d

Answer 2

1.

a) 6x+(7+4x)= 6x+7+4x= 10x+7

b)3x+(-4x-5y)= 3x-4x-5y= -x-5y

c)b+(2a-4b+9)= b+2a-4b+9=-3b+2a+9

d)a+(1-7a)-6a= a+1-7a-6a=-12a+1

e)(3a-6b)+(9a-5+b)= 3a-6b+9a-5+b= 12a-5b-5

f) x²+(2x²-z+x)+x= x²+2x²-z+x+x=3x²+2x-z

g)(6z-4z²)+(-5z+6z²)= 6z-4z²-5z+6z²=z+2z²

h)⅚a²+ (¾a-⅙a²)= ⅚a²+¾a-⅙a²= 4/6a²+¾a=⅔a²+¾a

 

2.

a)4x-(2x+7)= 4x-2x-7= 2x-7

b)3a-(3a-2) = 3a-3a+2= 2

c)2x+2y-(x-y)= 2x+2y-x+y= x+3y

d)3b-(-9-b)= 3b+9+b=4b+9

e) (6a+3b)-(12a+5b)= 6a+3b-12a-5b= -6a-2b

f)x²+y²+z²- (x²-y²-z²)= x²+y²+z²-x²+y²+z²= 2y²+2z²