Question

Examine the work shown. Explain the error and find the correct result.

Answer 1

There is no mistake unless you change the thing to the thing
2(4-16)-30
8-32+30
then  eyah hope this helps and hope i can get a brainly?

Answer 2

$2\left(4-16\right)-\left(-30\right) \ \textgreater \ Follow\;PEMDAS \ \textgreater \ 4-16= -12$

$2\left(-12\right)-\left(-30\right) \ \textgreater \ \mathrm{Apply\:rule\:}a\cdot \left(-b\right)\:=\:-a\cdot \:b$
$2\left(-12\right)=-2\cdot \:12=-24 \ \textgreater \ 24-\left(-30\right)$

$\mathrm{Apply\:rule\:}-\left(-a\right)\:=\:+a \ \textgreater \ -\left(-30\right)=+30 \ \textgreater \ -24+30=6$

Therefore they did not apply the correct rule at the end giving the wrong answer.

Hope this helps!