Wyłącz wspólny czynnik poza nawias:
a) (2x - 1)y + (1 - 2x) - z(1 - 2x)
b) 3(7x - 3)x^2 + 6x(3 - 7x)
Z góry dziękuję.
a) 2xy-1y+1-2x-z+2x
b) 21x - 9 x^2 + 18x - 42x^2
a)
( 2 x - 1) y + ( 1 - 2 x ) - z ( 1 - 2 x) =
= ( 2 x - 1) y - ( 2 x - 1) + z ( 2 x - 1) = ( y - 1 + x) *( 2 x - 1)
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b)
3 ( 7 x - 3 ) x^2 + 6 x ( 3 - 7 x) =
= 3 ( 7 x - 3) x^2 - 6 x ( 7 x - 3) = ( 3 x^2 - 6 x )( 7 x - 3 )
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a) 2xy-1y+1-2x-z+2x
b) 21x - 9 x^2 + 18x - 42x^2
a)
( 2 x - 1) y + ( 1 - 2 x ) - z ( 1 - 2 x) =
= ( 2 x - 1) y - ( 2 x - 1) + z ( 2 x - 1) = ( y - 1 + x) *( 2 x - 1)
=====================================================
b)
3 ( 7 x - 3 ) x^2 + 6 x ( 3 - 7 x) =
= 3 ( 7 x - 3) x^2 - 6 x ( 7 x - 3) = ( 3 x^2 - 6 x )( 7 x - 3 )
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