Question

Simplify the expression. What classification describes the resulting polynomial?

(x2 + 7x) + (2x2 − 7x)

A.
quadratic monomial
B.
linear binomial
C.
quadratic binomial
D.
linear monomial

Answer 1

Explanation:

(x2 + 7x) + (2x2 - 7x)

Add the similar terms

(x2 + 2x2) + (7x-7x)

3x2

Since it has a single term, it is a monomial. Since is has x2, it is quadratic in nature.

Answer:

Therefore, the correct answer is A.

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Answer 2

QUESTION :

• (x2 + 7x) + (2x2 − 7x)

ANSWER :

$3 {x}^{2} \: and \: linear \: binomial$

SOLUTION :

(x2 + 7x) + (2x2 − 7x)

${x}^{2} + 7x + 2 {x}^{2} + 7x$

$3 {x }^{2} + 7x - 7x$

$3 {x}^{2}$

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