Which expression is a polynomial? (Pic)

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asked Mar 11, 2019 170k views

2 Answers

Marano · Answer 1 · 2019-03-13T15:59:10+0000

A polynomial is an expression consisting of variables and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponents of variables.

Therefore your answer is
$x-\sqrt7$

√(7x) NOT, because x is in square root.

(7)/(√(x)) NOT, because x is in square root and is in the denominator

(7)/(x^2) NOT, because x² is in the denominator.

Which expression is a polynomial? (Pic)

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