Question

1 . 2x² - 5x - 12
____________ =
x² - 16

2. 2x² + 3x - 9
___________
x² + 2x - 5

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Answer 1

2x^2-5x-12
x^2-16
<=> 2.x^2-5.x-(4.3)
      x^2-(4.4)
<=>2-5x-3
    -4
<=>-1-5x
       -4
<=>1 -5x
       4



2x^2+3x-9
 x^2+2x-5
<=>2.x^2-3.x-9
       x^2+2.x-5
<=>2-3-9
        2-5
<=> -3-9
         -5
<=> -10
        -5
<=> 2