Determine if a Polynomial 3k(-k-8k+5)

Math
3k(-k-8k+5)
A polynomial is a combination of terms separated using + or – signs. Polynomials cannot contain any of the following:
1. Variables raised to a negative or fractional exponent. (2x-2,x12,…).
2. Variables in the denominator. (1x,1×2,…).
3. Variables under a radical. (x,x3,…).
4. Special features. (trig functions, absolute values, logarithms, …).
Simplify the expression.
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Subtract 8k from -k.
3k(-9k+5)
Apply the distributive property.
3k(-9k)+3k⋅5
Simplify the expression.
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Multiply k by k.
3⋅-9k2+3k⋅5
Multiply 5 by 3.
3⋅-9k2+15k
Multiply 3 by -9.
-27k2+15k
-27k2+15k
-27k2+15k
Determine if the expression breaks any of the rules.
Does not break any of the rules
Determine if the expression is a polynomial.
Polynomial
Determine if a Polynomial 3k(-k-8k+5)

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