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What is true about the sum of the two polynomials?

6s2t – 2st2

4s2t – 3st2

a) The sum is a binomial with a degree of 2.
b) The sum is a binomial with a degree of 3.
c) The sum is a trinomial with a degree of 2.
d) The sum is a trinomial with a degree of 3.

1 Answer

4 votes

Answer:

Option b). The sum is a binomial with a degree of 3.

Explanation:

The given polynomials are,

1). 6s²t – 2st²

2). 4s²t – 3st²

Sum of polynomials

Sum = (6s²t – 2st²

) + (4s²t – 3st²)

Sum = 6s²t + 4s²t - 2st² - 3st²

Sum = 10s²t - 5st²

degree = 2 + 1 = 3

It is a binomial with degree of 3.

Therefore the correct answer is option b).The sum is a binomial with a degree of 3.