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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+ (2x²-1+x)+x=x²+ 2x²-1+x+x=3x kwadrat+2x-1
g)(6z-4z²)+(-5z+6z²)=6z-4z²-5z+6z²=z+2z kwadrat
h) 5/6 a²+ (3/4 a- 1/6a²)+a=5/6 a²+ 3/4 a- 1/6a²+a=2/3a kwadrat+7/4a
może naj? ;
b) 3x - 4x - 5y = -x - 5y
c) b + 2a - 4b + 9 = -3b + 2a + 9
d) a + 1 - 7a - 6a = -12a + 1
e) 3a - 6b + 9a - 5 + b = 12a - 5b - 5
f) x² + 2x² - 1 + x + x = 3x² + 2x - 1
g) 6z - 4z² - 5z + 6z² = z + 2z²
h) 5/6a² + 3/4 a - 1/6 a² + a = 4/6 a² + 1 i 3/4 a
b) - x - 5y
c) 2a - 3b + 9
d) 1 - 12 a
e) 12a - 5b - 5
f) 3x2( 3x kwadrat)+ 2x -1
g) z + 2z2( 2z kwadrat)
h) 4/6a2 (4/6a kwadrat) + 1 3/4a