a.) 6a - (2a - 3b ) + ( a - 6b ) =
b.) -(3x - 4y) - (2x - 3y) + ( -y + 4x ) =
c.) -(3x - 4y) - (2x - 3y) - ( -y + 4x ) =
d ) (x+5y) - (4+2x) - (3y-1) =
Wykonaj mnożenie i zredukuj wyrazy podobne
a.) (2-x) (6x + 1) - ( 4x+3) (5-2x) =
b.) ( 2/3 y - 1/2 ) ( 3/5 y - 2/3 ) =
/= kreska ułamkowa daje naj
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a) 6a-(2a-3b)+(a-6b)=6a-2a+3b+a-6b=5a-3b
b)-(3x-4y)-(2x-3y)+(-y+4x)=-3x+4y-2x+3y-y+4x=-x+6y
c)-(3x-4y)-(2x-3y)-(-y+4x)=-3x+4y-2x+3y+y-4x=-9x+8y
d) (x+5y)-(4+2x)-(3y-1)=x+5y-4-2x-3y+1=-x+2y-3
a)(2-x)(6x+1)-(4x+3)(5-2x)=12x-6x2+2-x -(20x-8x2+15-6x)=11x-6x2+2-20x+8x2-15+6x=-3x+2x2-13
b) (2/3y-1/2)(3/5y-2/3)= 6/15y2-4/9y-3/10y+1/3= 2/5y2-4/9y-3/10y+1/3=2/3y2-67/90+1/3