The solution to the equation 4×9x-1=3(22x+1) is
3
2
32
23
Explanation for the correct answer:
Equating the given expression:
4×9x-1=3(22x+1)⇒9x-13=(22x+1)4⇒32x-13=22x+1222⇒32x-2-1=22x+12-2⇒32x-3=22x-32⇒32x-32=22x-3⇒34x×6=22x-3
or 20×34x×6=22x-3×30, On comparing we get,
4x–6=0and2x–3=0
Solving the above two equations we get
4x-6=0⇒4x=6⇒x=64⇒x=322x-3=0⇒2x=3⇒x=32
Therefore, the correct answer is option (C).
State which of the following is equation conatining variable:
4×3+9=21
Look at the pattern and fill in the blanks:
5=4×1+1, For 1st term or n=1
9=4×2+1, For 2nd term or n=2
13=4×3+1, For 3rd term or n=3
17=4×4+1, For 4th term or n=4
21=4×5+1, For 5th term or n=5
∴Expression for nth term is 4n+1.
(i) For n=8, 4×____+1=____.