Mathematics Questions and Answers – Polynomials in One Variable

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This set of Mathematics Multiple Choice Questions & Answers (MCQs) focuses on “Polynomials in One Variable”.

1. (x-y)2 = __________
a) x2 + 2xy+y2
b) x2 – 2xy+y2
c) x2 – y2
d) x2 + y2
View Answer

Answer: b
Explanation: We can write (x-y)2 as (x-y) * (x-y) = x2-xy-yx + y2
= x2-2xy + y2.
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2. How many terms are there in a polynomial 5x2+2x-2?
a) 1
b) 2
c) 3
d) 4
View Answer

Answer: c
Explanation: We can get number of terms by separating them by “+” or “” sign.
In the given polynomial 5x2+2x-2, if we separate expressions by “+” or “” sign, we get three separate terms as 5x2, 2x and 2.
Hence we can say that there are three terms in the polynomial 5x2+2x-2.

3. Which of the following is the example of Trinomial?
a) 9x3+ 5x2+7x+2
b) 9
c) 7x-2
d) 5x2+2x-2
View Answer

Answer: d
Explanation: Polynomials only having three terms are called Trinomials.
Hence to find trinomial polynomial, we have to find polynomial which has three terms. We can see that 5x2+2x-2 has three terms namely 5x2, 2x and 2. Hence it is trinomial.
Similarly, polynomials only having one term are called Monomials and polynomials only having two terms are called Binomials.
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Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He is Linux Kernel Developer & SAN Architect and is passionate about competency developments in these areas. He lives in Bangalore and delivers focused training sessions to IT professionals in Linux Kernel, Linux Debugging, Linux Device Drivers, Linux Networking, Linux Storage, Advanced C Programming, SAN Storage Technologies, SCSI Internals & Storage Protocols such as iSCSI & Fiber Channel. Stay connected with him @ LinkedIn | Youtube | Instagram | Facebook | Twitter