Question

factories
a^3+2a^2-a-2​

Answer 1

Answer:

Step-by-step explanation:

Factor a3+2a2−a−2

a3+2a2−a−2

=(a+1)(a−1)(a+2)

Answer:

(a+1)(a−1)(a+2)

Answer 2

Answer:-

$(a-1),(a+1)$ and $(a+2)$ are the factors of $a^3+2a^2-a-2$

Procedure of solving:-

• To factorise cubic polynomial, we need to find the coefficient of the given cubic polynomial.
• By using hit and trial method, we can find two factors which are linear and quadratic polynomial respectively. The linear polynomial is the factor of the given cubic polynomial only when the remainder is zero.
• The quadratic polynomial (which is a factor of the given cubic polynomial) can be later factorised by using the method of splitting the middle term.

Solution:-

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