Advertisements
Advertisements
प्रश्न
Find x.
23x = 82x + 1
बेरीज
Advertisements
उत्तर
We have, 23x = 82x + 1
⇒ 23x = (23)2x + 1
⇒ 23x = (2)6x + 3 ...[∵ (am)n = (a)m × n]
On comparing the power of 2, we get
3x = 6x + 3
⇒ –3 = 3x
⇒ x = –1
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 8: Exponents and Powers - Exercise [पृष्ठ २७४]
APPEARS IN
संबंधित प्रश्न
The value of `1/4^-2` is ______.
55 × 5–5 = ______.
35 ÷ 3–6 can be simplified as ______.
50 = 5
(–6)0 = –1
Find a single machine that will do the same job as the given hook-up.
a (× 24) machine followed by `(xx (1/2)^2)` machine.
Supply the missing information for diagram.
Supply the missing information for diagram.
Find x.
`(- 1/7)^-5 ÷ (- 1/7)^-7 = (-7)^x`
Find x.
`(2/5)^(2x + 6) xx (2/5)^3 = (2/5)^(x + 2)`
