Just a math problem?

Question

what is 1/x=x/7?

& For what values of k will kx-2={square root of 2} have a rational solution when solving for x?

Answer 1

what is 1/x=x/7?

& For what values of k will kx-2={square root of 2} have a rational solution when solving for x?

asdfghjk...here it is

1/x=x/7

1 = x²/7

x² = 7

x=√7 ← Ans

For what values of k will kx-2={square root of 2} have a rational solution when solving for x?

k(x - 2) = √2

k²(x - 2)² = 2

k²(x - 2)(x - 2) = 2

k²/2(x - 2)(x -2) = 0

[(k²/2)x - 2(k²/2)][(x -2)] = 0

[(k²/2)x - 2(k²/2)] = 0

(k²/2)x = 2(k²/2)

x = 2 k²/k²

x = 2 ← Ans

hope this helps

Answer 2

x^2 = 7; x = sqrt 7