Question

find the value of x if 2 ^x-5 and and 5^x-4 is equal to 5​

Answer 1

Answer:

$2 {x}^{2} - 5 = 5 {x}^{2} - 4 \\ 5 {x}^{2} - 2 {x}^{2} - 4 + 5 = 0 \\ 3 {x}^{2} + 1 = 0 \\ 3 {x}^{2} = - 1 \\ {x}^{2} = \frac{ - 1}{3}$

Answer 2

Step-by-step explanation:

2x

2

−5=5x

2

−4

5x

2

−2x

2

−4+5=0

3x

2

+1=0

3x

2

=−1

x

2

=

3

−1