Question

solve it urgently..... ​

Answer 1

SOLUTION

$= > 5x - \frac{35}{x} = 18 \\ \\ = > 5x {}^{2} - 35 = 18x \\ \\ = > 5x {}^{2} - 35 - 18x = 0 \\ \\ = > 5x {}^{2} - 18x - 35x = 0 \\ \\ = > 5x {}^{2} - 25x + 7x - 35 = 0 \\ \\ = > 5x(x - 5) + 7(x - 5) = 0 \\ \\ = > (x - 5) \: (5x + 7) = 0 \\ \\ = > x - 5 = 0 \: \: or \: 5x + 7 = 0 \\ \\ = > x = 5 \: \: or \: 5x = - 7 = x = - \frac{7}{5}$

Hopefully

Answer 2

Answer:

x = 5 or x = -7/5

Step-by-step explanation:

$\mathbf{ 5x - \frac{35}{x} } = 18 \\ \\ \mathbf{ \frac{5 {x}^{2} - 35 }{x} = 18 } \\ \\ \mathbf{5 {x}^{2} - 35 = 18x} \\ \\ \mathbf{5 {x}^{2} - 18x - 35 = 0} \\ \\ \mathbf{5 {x}^{2} - 25x + 7x - 35 = 0} \\ \\ \mathbf{5x(x - 5) + 7(x - 5) = 0} \\ \\ \mathbf{(x - 5)(5x + 7) = 0} \\ \\ \\ \mathsf{therefore} \\ \\ \boxed{ \mathbf{x \: = 5}} \\ \\ \boxed{ \mathbf{x = \frac{ - 7}{5} }}$