Question

calcule
a)-7²+(-7)²=
b)-2²-30+1=
c)-5²+(-3)²-10=
e)3²+3·²=

Answer 1

a) 14+14= 28
b)4-30+1=27
c)25+9-10= 26
e)9+9= 18

Answer 2

a)-49+49=0
B)-4-30+1 = -34 +1 = -33
C)-25+9-10=-35+9=-24
E)9+9=18