[tex] \huge \boxed{\mathbb{QUESTION} \downarrow}[/tex]
[tex] \large \tt \: -20 \div 5(-3)+4(-2)(-1)-4 ^ { 2 }[/tex]
[tex] \large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}[/tex]
[tex] \tt \: -20 \div 5(-3)+4(-2)(-1)-4 ^ { 2 }[/tex]
Divide -20 by 5 to get -4.
[tex] \tt \: -4\left(-3\right)+4\left(-2\right)\left(-1\right)-4^{2} [/tex]
Multiply -4 and -3 to get 12.
[tex] \tt \: 12+4\left(-2\right)\left(-1\right)-4^{2} [/tex]
Multiply 4 and -2 to get -8.
[tex] \tt \: 12-8\left(-1\right)-4^{2} [/tex]
Multiply -8 and -1 to get 8.
[tex] \tt \: 12+8-4^{2} [/tex]
Add 12 and 8 to get 20.
[tex] \tt \: 20-4^{2} [/tex]
Calculate 4 to the power of 2 and get 16.
[tex] \tt \: 20-16 [/tex]
Subtract 16 from 20 to get 4.
[tex] = \boxed{\boxed{ \bf 4}}[/tex]
