Question

give answer of this question ​

Answer 1

Answer:

2^n-7×5^n-4= 2^1×5^4

On equating both sides, we get

n-7=1 and n-4=4

n=1+7 and n=4+4

therefore, n=8

Answer 2

$\huge\fbox \red{A}\fbox \green{N}\fbox \purple{S}\fbox \orange{W}\fbox \red{E}\fbox \blue{R}$

2^n-7 x 5^n-4 = 1250

2^n-7 x 5^n-4 = 2 × 625

2^n-7 × 5^n-4 =

$2 {}^{1} \times 5 {}^{4}$

Therefore,

x - 7 = 1

x = 8

x - 4 = 4

x = 8

$\sf {\green {\underline {\red{\underline {♛Nekki♛࿐ }}}}}$