1]
[tex]4(3x-5)=4\cdot3x-4\cdot5=\boxed{12x-20}[/tex]
2]
[tex]5(8m+2)=5\cdot8m+5\cdot2=\boxed{40m+10}[/tex]
3]
[tex]-2(5t+8)=-2\cdot5t-2\cdot8=\boxed{-10t-16}[/tex]
4]
[tex]-3(2a-7)=-3\cdot2a-3\cdot(-7)=\boxed{-6a+21}[/tex]
