w00t22
CSS L4D DoD? Steam ID = w00t22
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i was trying out some of my homework tonight and i stumbled across these questions
4^x+1 + 4^x = 160
2^x+2 + 2^x = 320
Answers
So first i thought same base (4) remove them, x + 1 + x = 160, ends up way to big. then i tryed the power law so
(x+1)log4 + xlog4 = 160
expand?
xlog4 + log4 + xlog4 = 160
simplified
x(log4+log4) = 160-log4 ends up like 132 which is wrong.
And another question for expanding the (x+1 and x-1) in front of logs, if its x+3, so
(x+3)log4
xlog4 + log12 or xlog4 + 3log4
this is my teachers first year teaching this course and hes not the best at lessons and helping students ><
thanks for any help plus rep of course
4^x+1 + 4^x = 160
2^x+2 + 2^x = 320
Answers
2.5
5
5
So first i thought same base (4) remove them, x + 1 + x = 160, ends up way to big. then i tryed the power law so
(x+1)log4 + xlog4 = 160
expand?
xlog4 + log4 + xlog4 = 160
simplified
x(log4+log4) = 160-log4 ends up like 132 which is wrong.
And another question for expanding the (x+1 and x-1) in front of logs, if its x+3, so
(x+3)log4
xlog4 + log12 or xlog4 + 3log4
this is my teachers first year teaching this course and hes not the best at lessons and helping students ><
thanks for any help plus rep of course