Question

number of polynomial having zero as - 2 and 5 is

Answer 1

no. of polynomial=1.

Answer 2

Answer:

The polynomial having Zeros as ( - 2 ) and 5 are one ( 1 ) in no.

So, option ( a ) is ryt !!

As ,

• Sum of the Zeros :- 5 - 2 = 3

• Product of the Zeros :- 5 × ( - 2 ) = ( - 10 )

• To form a quadratic equation we have formula as :-

x² - ( Sum of zeros )x + (Product of Zeros)

Putting value in it !!

x² - 3x - 10 is the required quadratic equation having ( - 2 ) and 5 as Zeros.

To Check :-

Factorising the Equation by middle term splitting.

x² - 3x - 10 = 0

x² - 5x + 2x - 10 = 0

x ( x - 5 ) + 2 ( x - 5 ) = 0

( x - 5 ) ( x + 2 ) = 0

• ( x - 5 ) = 0

x = 5

• ( x + 2 ) = 0

x = ( - 2 ).....

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