factorise:9^x+2=720+9^x
Answers
Answered by
8
9^x*9^2=720+9^x
9^x*9^2-9^x=720
=9^x(9^2-1)=720
=9^x*80=720
=9^x=720/80=9
=9^x=9^1
x=1
Hope it helps
ritika23942:
yupp!! i was little confused ... thanks a lot
it was helpful but I can't... sorry please
Similar questions