Question

a.125 + 170+ 1100+ (-125)+(-864) +(-36

b.[( 7^3+3x7^2) + (3^2x5^2+5^2) 

Answer 1

a. = 125 + 170 + 1100 - 125 - 864 - 36 = 370

b. = 7² ( 7 + 3 ) + 5² ( 9 + 1 ) 

   = 49 x 10 + 25 x 10

   = 10 ( 49+25)

   = 10 x 74 = 740

Answer 2

a.125+170+1100+(-125)+(-864)+(-36)

=1395+(-125)+(-864)+(-36)

=370

b.[(7³+3.7²)+(3².5²+5²)

=(343+3.49)+(9.25+25)

=(343+147)+(225+25)

=490+250

=740