Question

Checkthatx–2isafactorof2x2 –5x-6ornot.

Answer 1

Step-by-step explanation:

to find if x-2 is a factor or not we have two methods. i am writing both. ok

1st method

x-2)2x^2-5x-6(2x-1

2x^2-4x

- +

-------------------

0. -x-6

-x+2

+ -

------------------

0-8

so its not a factor of this polynomial.

2nd method

x-2=0

x=2

therefore we put x=2 in p(x) where p (x) is 2x^2-5x-6

therefore 2 (2)^2-5 (2)- 6

8-10-6

2-10=-8

hence its not a factor of p(x)

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