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
Isolate the x and the 2 from the top of the equation, then cancel those out from the bottom, then divide out the -1. after that you are left with -6x²+2x-4
