Dane są wyrażenia : A= 2x + 3y - 1 , B=4x , C=-5x + y - 5,
Oblicz : a)A * B b)B * C c)(A+C) * B d)(A-C) * B
a)A * B
(2x + 3y - 1)4x = 8x²+12y-4x
b)B * C
4x(-5x+y-5) = -20x²+4xy-20x
c)(A+C) * B
(2x+3y-1-5x+y-5)4x=(-3x+4y-6)4x = -12x²+16y-24x
d)(A-C) * B
(2x+3y-1+5x-y+5)4x = (7x+2y+4)4x = 28x²+8xy+16x
a) (2x + 3y - 1)·(4x)=8x²+12xy-4x
b)4x·(-5x + y - 5)=-20x²+4xy-20x
c)(-5x + y - 5+2x + 3y - 1 ) ·4x=(-3x+4y-6)·4x=-12x+16xy-24x
d)(5x -y+ 5+2x + 3y - 1 ) ·4x=(7x+2y+4)·4x=28x²+8xy+16x
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a)A * B
(2x + 3y - 1)4x = 8x²+12y-4x
b)B * C
4x(-5x+y-5) = -20x²+4xy-20x
c)(A+C) * B
(2x+3y-1-5x+y-5)4x=(-3x+4y-6)4x = -12x²+16y-24x
d)(A-C) * B
(2x+3y-1+5x-y+5)4x = (7x+2y+4)4x = 28x²+8xy+16x
a) (2x + 3y - 1)·(4x)=8x²+12xy-4x
b)4x·(-5x + y - 5)=-20x²+4xy-20x
c)(-5x + y - 5+2x + 3y - 1 ) ·4x=(-3x+4y-6)·4x=-12x+16xy-24x
d)(5x -y+ 5+2x + 3y - 1 ) ·4x=(7x+2y+4)·4x=28x²+8xy+16x