Question

b, (-26) + 16 + (-34) + 26

c, 12 + 3.[39 - (5-2)²]

Answer 1

\(b,\left(-26\right)+16+\left(-34\right)+26=\left(-10\right)+\left(-8\right)=-18\\ c,12+3.\left[39-\left(5-2\right)^2\right]\\ =12+3.\left[39-3^2\right]\\ =12+3.\left[39-9\right]\\ =12+3.30\\ =12+90=102\)

Answer 2

b) (-26)+16+(-34)+26

=16-34

=-18

c)12+3[39-(5-2)²]

=12+3[39-(25-20+4)]

=12+3[39-9]

=12+3.30

=12+90

=102

Answer 3

\(26+\left(-16\right)+\left(-34\right)+26\)

\(=26+\left[\left(-16\right)+\left(-34\right)\right]\)

\(=26+\left(-50\right)\)

\(=-24\)

 

\(12+3.\left[39-9\right]\)

\(=12+3.30\)

\(=12+90\)

\(=102\)