A= ( 2x-1 ) ( 5x+3 )
A= ( 2×0,5-1 ) ( 5×0.5+3)
A= ( 1 - 1 ) ( 2.5+3 )
A= 0 + 5.5
A = 5.5
B = ( 2x-1 ) ( 5x+3 )
B = (2×4-1) (5×4+3)
B= (8-1) (20+3)
B = 7 + 23
B = 30
C = ( 2x-1 ) ( 5x+3 )
C = ( 2×-4 -1 ) ( 5×-4 +3 )
C = ( -8 -1 ) ( -20 + 3 )
C = -9 + -17
C = -26
D = ( 2x-1 ) ( 5x+3 )
D = ( 2× -0.5 -1) ( 5×-0.5 +3 )
D = (-1-1) ( 2.5+3)
D = -2 + 5.5
D = 3.5
E = 1/3 = 0.33
E = ( 2x-1 ) ( 5x+3 )
E = ( 2×0.33-1)(5×0.33+3)
E ~ (0.66-1) ( 1.65+3)
E ~ -0.34 + 4.65
E ~ 4.31
F = -3/5 = -0.6
F = ( 2x-1 ) ( 5x+3 )
F = (2×-0.6-1)(5×0.6+3)
F = (-1.2-1) (3+3)
F = -2.2+ 6
F = 3.8
