Question

The value of x^2x + x (x^x) when x = 2 is:​

Answer 1

Step-by-step explanation:

First of all, notice that (2) is (2 in power of x-2) not .

;

;

Since , then ;

;

x = 0 or x = 4.

Only x = 4 satisfies , this x = 4. Sufficient.

Hope it's clear.

Answer 2

$\huge{\underline{\underline{\boxed{\mathscr{\green{Aɴsᴡᴇʀ\: ࿐}}}}}}$

If , what is the value of x ?

(1)

we get x as 0, 4 or -4..

when we substitute value in , ONLY x = 4 is possible..

sufficient

(2)

or ...

2^x has to be multiple of 2 and so also x should be in power of 2 that is 2,4,8,16...AND x will fit in only at x=4 as

ONLY when x is 4 both sides are 4..