The x should be to the third power to be a cubic. The way this is written the 3 is a coefficient.
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3x9 ones = 27
can be classified by the number of terms 1 term .... monomial 2 .... binomial 3 .... trinomial 4 or more ... polynomial Also by exponents if only 1 variable and largest exponent is 2, then it is a quadratic if 1 variable and largest exp. is 3, then a cubic.
TRUE.
yes
Yes, it is when a polynomial has two terms with a degree of 3. ex: 4x^3+7