is 28 3x²+2x² - 5+2 a polynomial Justify yours answer.
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Step-by-step explanation:
A polynomial can have constants, variables and exponents, but never division by a variable.
A polynomial can't have a negative exponent.
Polynomials can have no variable at all, or one variable or two or more variables.exponents can only be 0,1,2 or multiples not in fractions.
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