Answer:
cant see the screen
Step-by-step explanation:
Answer:
cant be factored
Step-by-step explanation:
Remember that exponentioal rule
x^m times x^n=x^(m+n)
therefor
7^4 times 7^-6=7^(4-6)=7^(-2)
remember the other rule
x^-m=1/(x^m) so
7^-2=1/(7^2)=1/49
answe ris A
