Question

Q 1: Choose the correct alternative answer for the following questions.(4 marks) 1) Out of the following _is a polynomial. A ) 2√x B) x + 2 C) 1 y D) m−2​

Answer 1

Solution :-

we know that,

• A polynomial can't have a negative or fractional exponents .

So, checking all given options we get,

A) 2√x

→ 2 * (x)^(1/2)

as we can see that, exponent of variable x is a fraction . Therefore, option (A) is not a polynomial .

B) (x + 2)

since given polynomial has a variable x and a constant term . Therefore, option (B) is a polynomial .

C) 1/y

→ y^(-1)

as we can see that, exponent of variable y is a negative number . Therefore, option (C) is not a polynomial .

D) m^(-2)

as we can see that, exponent of variable m is a negative number . Therefore, option (D) is not a polynomial .

Hence, Only option (B) x + 2 is a polynomial .

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. Find all the zeroes of the polynomial x4

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