5^2x -7^x -35.5^2x +36.7^x = 0
Supposedly a qn from an OL prelim paper
Originally posted by quailmaster:5^2x -7^x -35.5^2x +36.7^x = 0
Supposedly a qn from an OL prelim paper
5^2x -7^x -35.5^2x +36.7^x = 0
-34.5^2x +35.7^x = 0
35.7^x = 34.5^2x
lg 35 + x lg 7 = lg 34 + 2x lg 5
Press calculator and solve for x.
oh i keep thinking that its (35.5)^2x... when its 35 X 5^2x
ok thanks