Which of the following is a binomial (a) 3xy
(b) 4l + 5m
(c) 2x + 3y – 5
(d) 4a – 7ab + 3b + 12.
plz answer guys
Answers
SOLUTION
TO CHOOSE THE CORRECT OPTION
Which of the following is a binomial
(a) 3xy
(b) 4l + 5m
(c) 2x + 3y – 5
(d) 4a – 7ab + 3b + 12.
CONCEPT TO BE IMPLEMENTED
Polynomial :
An algebraic expression that contains one or more terms with non-zero coefficients is called polynomial
Monomial :
A monomial is an expression in algebra that contains one term
Binomial :
In algebra, a binomial is a polynomial that is the sum of two terms, each of which is a monomial.
Trinomial :
A trinomial is a polynomial consisting of three terms or monomials.
Quadrinomial :
In algebra, a quadrinomial is a polynomial that is the sum of four terms, each of which is a monomial.
EVALUATION
CHECKING FOR OPTION : a
(a) 3xy
Since number of terms is 1
So it is a monomial
Thus it is not a correct option
CHECKING FOR OPTION : b
(b) 4l + 5m
Since number of terms is 2
So it is a binomial
Thus it is a correct option
CHECKING FOR OPTION : c
(c) 2x + 3y – 5
Since number of terms is 3
So it is a trinomial
Thus it is not a correct option
CHECKING FOR OPTION : d
(d) 4a – 7ab + 3b + 12.
Since number of terms is 2
So it is a quadrinomial
Thus it is not a correct option
FINAL ANSWER
Hence the correct option is (b) 4l + 5m
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