Answer :

lipi
x2-9x+20
=x2-5x-4x+20
=(x-5)(x-4)
now this divided by x-4 will be x-5

Given:

  • Polynomial: x² - 9x + 20; x - 4.

Find:

  • The roots of the polynomial.

Calculations:

= x²- 9x + 20

= x² - 5x - 4x + 20

= (x - 5) (x - 4)

Therefore, (5, 4) is the roots of the polynomial.

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Polynomial:

• In Algebra expression, the expression of several terms such as Positive and Negative signs is known as "Polynomial".

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Example:

  • (2a + 2b - 3c).

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