Question

(1) 10^-2×10^0×(-10^5)+10^-1÷(-10)^0 (2) (-a^4)^3-(a^2)^6-a&

Answer 1

(1) 10^-2×10^0×(-10^5)+10^-1÷(-10)^0

= 10^-2×1×(-10^5)+1/10

=-10^3+1/10

=0.1-1000

= -999.9

(2) (-a^4)^3-(a^2)^6-a•a^3•(-a^2)^4

=-a^12-a^12-a^4*a^8

= -a^12-a^12-a^12

= -3a^12