Question

Find the zero of polynomial x square -3-2x

Answer 1

Answer:∠

Step-by-step explanation:

x² - 2x -3  can be written as   x²- 3x + x -3  

(Using middle term splitting)

Now taking common ,

⇒x(x-3)+1(x-3) = 0

⇒ (x+1)(x-3) =0

⇒ roots are , x+1 = 0                           and  x-3 = 0

⇒ x = -1         and  x=3

roots = -1 , 3

Answer 2

Answer:

x = -1 , 3

Step-by-step explanation:

x^2 - 3 - 2x = 0

x^2 - 2x - 3 = 0

x^2 - 3x + x - 3 = 0

x ( x - 3 ) + 1 ( x - 3 ) = 0

( x + 1 ) ( x - 3 ) = 0

x = -1 , 3