a) 5 (2x-3) b) -3 (4x+2) c) -5 (2x-4) d) 3(6x+3)

a) 5(2x-3)
= 10x-15
b)-3(4x+2)
=-12x-6
=12x+6
c)-5(2x-4)
=-10x+20
=10x-20
d)3(6x+3)
=18x-9

Jawaban : 
a ) 5 ( 2x - 3 )   = 10x - 15
b ) -3 ( 4x + 2 ) = -12x - 6
c ) -5 ( 2x - 4 )  = -10x + 20
d ) 3 ( 6x + 3 )  = 18x + 9