Question

Determine el valor del cubo
4x² -5x+6
2x+3
2x-3

Answer 1

4..............10.................1

---------+----------- = -----------

2x -3.......4x² - 9.........2x +3

 

4(2x+ 3) + 10.................1

---------------------- = -----------

................4x² - 9.........2x +3

 

8x + 12 + 10.................1

---------------------- = -----------

................4x² - 9.........2x +3

  espero que te sirva 

8x + 22 ........................1

---------------------- = -----------

................4x² - 9.........2x +3

 

(8x + 22)(2x +3) = (4x² - 9).1

16x² + 24x + 44x + 66 = 4x² - 9

16x² - 4x² +68x + 66 + 9 = 0

12x² + 68x + 75 = 0

 

x1 = - 25/6.........x2= -3/2