Usuń nawiasy i wykonaj redukcję wyrazów podobnych:
a) (a+b) + (2a+b)
b) 2x+ (3y- 2z) + (3z- 2x)
c) -5ab+ (bc- 2ab) + 4bc
d) (m+n)- (2m+ 3n)
e) (3-4x²+ 5x )- (-3+ 5x²+ 3)
f) 9y- (2y+ 3x+ 2)+ 10y
g) 8x- (4x+ 2) -3+ 3x
h) (2a+ b)- (3a+ 6b- 1)+ a+ 4b
Jeżeli wszystkiego nie będzie to zgłaszam :***
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a) (a+b) + (2a+b)=a+b+2a+b=3a+2b
b) 2x+ (3y- 2z) + (3z- 2x)=2x+3y-2z+3z-2x=3y+z
c) -5ab+ (bc- 2ab) + 4bc=-5ab+bc-2ab+4bc=-7ab+5bc
d) (m+n)- (2m+ 3n)=m+n-2m-3n=-m-2n
e) (3-4x²+ 5x )- (-3+ 5x²+ 3)=3-4x²+5x+3-5x²-3=3-9x²+5x
f) 9y- (2y+ 3x+ 2)+ 10y=9y-2y-3x-2+10y=17y-3x-2
g) 8x- (4x+ 2) -3+ 3x=8x-4x-2-3+3x=7x-5
h) (2a+ b)- (3a+ 6b- 1)+ a+ 4b=2a+b-3a-6b+1+a+4b=-b+1
a) (a+b) + (2a+b)= a+b+2a+b=3a+2b
b) 2x+ (3y- 2z) + (3z- 2x)= 2x+3y-2z+3z-2x=4z
c) -5ab+ (bc- 2ab) + 4bc= -5ab+bc-2ab+4bc=-7ab+5bc
d) (m+n)- (2m+ 3n)= m+n-2m-3n= -m-2n
e) (3-4x²+ 5x )- (-3+ 5x²+ 3)= 3-4x2+5x+3-5x2-3=3-9x2+5x
f) 9y- (2y+ 3x+ 2)+ 10y= 9y-2y-3x-2+10y= 17y-3x-2
g) 8x- (4x+ 2) -3+ 3x= 8x-4x-2-3+3x= 7x-5
h) (2a+ b)- (3a+ 6b- 1)+ a+ 4b= 2a+b-3a-6b+1+a+4b= -b+1