Question

Find zero of polynomial P(x)=(x+1)(x-2) .

Answer 1

Answer:

Hey Mate!!

As (x + 1) and (x - 2) are the factors of the polynomial p(x),

x = (-1) OR 2 are the zeroes of the polynomial.

Answer 2

The zeroes of polynomial P(x) = (x + 1)(x - 2) are - 1 , 2

Given :

The polynomial P(x) = (x + 1)(x - 2)

To find :

The zeroes of the polynomial

Solution :

Step 1 of 2 :

Write down the given polynomial

The given polynomial is P(x) = (x + 1)(x - 2)

Step 2 of 2 :

Find zeros of the polynomial

For Zeroes of the polynomial P(x) we have

P(x) = 0

⇒ (x + 1)(x - 2) = 0

⇒ x = - 1 , 2

The zeroes of polynomial P(x) = (x + 1)(x - 2) are - 1 , 2

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