Q. 22 9^x+2 = 720 + 9^x
Attachments:
Answers
Answered by
39
9^(x+2)= 9^x . 9^2= 81 . 9^x
now equation::
9^(x+2)= 720+9^x
81. 9^x= 720 +9^x
81. 9^x - 9^x = 720
9^x(81-1) = 720
9^x . 80 = 720
9^x = 720/80= 9
9^x= 9^1
x= 1
value of (4x)1/x = 4
now equation::
9^(x+2)= 720+9^x
81. 9^x= 720 +9^x
81. 9^x - 9^x = 720
9^x(81-1) = 720
9^x . 80 = 720
9^x = 720/80= 9
9^x= 9^1
x= 1
value of (4x)1/x = 4
Answered by
15
answer is 1 and my front answer is right
mark plzzzzzzzzzzzzzzzzzzz
mark plzzzzzzzzzzzzzzzzzzz
Similar questions