Question

Q:-5/x-2+1/x-1=6/x,where x not equal to 0,1,2
solve this easy Question​

Answer 1

Step-by-step explanation:

$\red{\bold{\underline{\underline{QUESTION:-}}}}$

Q:-5/x-2+1/x-1=6/x,where x not equal to 0,1,2

$\huge\tt\underline\blue{Answer }$

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _✍️

══════════XXX═════════════

$⟹ \frac{5}{x - 2} + \frac{1}{x - 1} = \frac{6}{x}$

$⟹ \frac{5(x - 1) + x - 2}{(x - 1)(x - 2)} = \frac{6}{x}$

$⟹ \frac{5x - 5 + x - 2}{(x - 2)(x - 1)} = \frac{6}{x}$

$⟹ \frac{6x - 7}{(x - 2)(x - 1)} = \frac{6}{x}$

$⟹ \frac{x(6x - 7)}{x(x - 1) - 2(x - 1)} = \frac{6}{x}$

$⟹ \frac{ {x}^{2} - 7x}{ {x}^{2} - x - 2x + 2} = \frac{6}{x}$

$⟹ {x}^{3} - 7 {x}^{2} = 6 {x}^{2} - 18x + 12$

$⟹ {x}^{3} - 13 {x}^{2} + 18x - 12$

$⟹ {x}^{2} (x - 13) + 6(3x - 2)$

$⟹( {x}^{2} + 6)(x - 13)(3x - 2) = 0$

$⟹ {x}^{2} + 6 = 0$

$⟹x =± \sqrt{6}$✓

$⟹x - 13 = 0$

$⟹x = 13$✓

$⟹3x - 2 = 0$

$⟹x = \frac{2}{3}$✓

══════════XXX═════════════

HOPE IT HELPS YOU..

_____________________

Thankyou:)

Answer 2

Answer:

Given,

Area of rectangle = 25x2 – 35x + 12

We know, area of rectangle = length × breadth

So, by factoring 25x2 – 35x + 12, the length and breadth can be obtained.

25x2 – 35x + 12 = 25x2 – 15x – 20x + 12

=> 25x2 – 35x + 12 = 5x(5x – 3) – 4(5x – 3)

=> 25x2 – 35x + 12 = (5x – 3)(5x – 4)

So, the length and breadth are (5x – 3)(5x – 4).

Now, perimeter = 2(length + breadth)

So, perimeter of the rectangle = 2[(5x – 3)+(5x – 4)]

= 2(5x – 3 + 5x – 4) = 2(10x – 7) = 20x – 14

So, the perimeter = 20x – 14