Question

solve for x: x+2/x-2 - x-2/x+2​

Answer 1

Answer:

$\frac{x + 2}{ x- 2} - \frac{x - 2}{x + 2} \\ = \frac{ {(x + 2)}^{2} - {(x - 2)}^{2} }{ {x}^{2} - {2}^{2} } \\ = \frac{ {x}^{2} + 4x + 4 - {x}^{2} + 4x - 4 }{ {x}^{2} - 4 } \\ = \frac{8x}{ {x}^{2} - 4}$

Answer 2

combination has a resistance of (i) 9 11. (ii) 4 0.

combination has a resistance of (i) 9 11. (ii) 4 0.Several electric bulbs designed to be used on a 220 V electric supply line, are

combination has a resistance of (i) 9 11. (ii) 4 0.Several electric bulbs designed to be used on a 220 V electric supply line, arerated 10 W. How many lamps can be connected in parallel with each other across

combination has a resistance of (i) 9 11. (ii) 4 0.Several electric bulbs designed to be used on a 220 V electric supply line, arerated 10 W. How many lamps can be connected in parallel with each other acrossthe two wires of 220 V line if the maximum allowable current is 5 A?

hello bro how r u