Which expressions are polynomials?
2 answers:
Answer:
Step-by-step explanation:
Definition : The expression that can have constants (like 4), variables (like x or y) and exponents (like the 2 in ), that can be combined using addition, subtraction, multiplication and division, but no division by a variable and a variable's exponents can only be 0,1,2,3,... etc. and it can't have an infinite number of terms.
1. 6 + p
Being p be a variable this equation is polynomial
2. x – 1
Since x-1 has variable and constant so according to definition it is a polynomial
3. 8x−z3
According to definition it is a polynomial
4 .
Since has root so it is not a polynomial .
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You can only add exponents if you are multiplying two of the same variable together. For example,
You take them away if you are dividing.
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In a polynomial equation, you can add together two of the same variable if they have the same exponent
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Or you can take them away in a similar fashion,
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But you cannot add two (or more) different exponents,
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(it does not get any simpler)
I hope this has answered your question, if not, leave a comment and I'll update the answer.
You take them away if you are dividing.
<span>
In a polynomial equation, you can add together two of the same variable if they have the same exponent
</span>
Or you can take them away in a similar fashion,
<span>
But you cannot add two (or more) different exponents,
</span>
I hope this has answered your question, if not, leave a comment and I'll update the answer.