A = 2x ( x-3)
= 2x² - 6x
B= (5x+2)* 4 x
= 20x² + 8 x
C = (x+1) (4-x)
C = 4 x - x² + 4 - x
c= 3x - x² +4
D= (x-2) (3x-1)
d= 3 x² - x - 6x +2
=3 x² -7 x +2
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A = 2x ( x-3)
= 2x² - 6x
B= (5x+2)* 4 x
= 20x² + 8 x
C = (x+1) (4-x)
C = 4 x - x² + 4 - x
c= 3x - x² +4
D= (x-2) (3x-1)
d= 3 x² - x - 6x +2
=3 x² -7 x +2