Solve :

$2\Big(\dfrac{2x - 1}{x + 3}\Big) - 3\Big(\dfrac{x + 3}{2x - 1}\Big) = 5$

x ≠ -3, $\dfrac{1}{2}$

Solve: 5^x+1 + 5^2-x = 5³ + 1

If the quadratic equation kx² + kx + 1 = 0 has real and distinct roots, the value of k is :

1. 0

2. 4

3. 0 and 4

4. 0 or 4

If x² - 4x = 5, the value of x is :

1. 5

2. -1

3. 5 or -1

4. 5 and -1