It is still called a polynomial.
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You can't know if a general polynomial is in factored form.
It is a quadratic expression and when factored it is: (7x+5)(2x-7)
Put it into two binomilals that multipy together to create the polynomial. For example: 5K(squared)-2k-7 is factored out as: (5k+1)(-7K+1)
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It is called the property of "closure".