Advertisements
Advertisements
प्रश्न
Find x.
23x = 82x + 1
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
APPEARS IN
संबंधित प्रश्न
For a non-zero rational number z, (z–2)3 is equal to ______.
Cube of `-1/2` is ______.
Which of the following is not the reciprocal of `(2/3)^4`?
By multiplying `(5/3)^4` by ______ we get 54.
The expression for 35 with a negative exponent is ______.
`(2/3)^-2 xx (2/3)^-5 = (2/3)^10`
`(125 xx x^-3)/(5^-3 xx 25 xx x^-6)`
An electron’s mass is approximately 9.1093826 × 10–31 kilograms. What is this mass in grams?
For hook-up, determine whether there is a single repeater machine that will do the same work. If so, describe or draw it.

The diameter of the Sun is 1.4 × 109 m and the diameter of the Earth is 1.2756 × 107 m. Compare their diameters by division.
