Written as a simplified polynomial in standard form, what is the result when (x + 1)2 is subtracted from 7x2 - 4x + 6?

The resultant polynomial is:

Step-by-step explanation:

We need to subtract from

so, we start by performing the multiplication involved in the perfect square of the binomial , and obtain its expression in separate terms that can be combined:

Now we can subtract this trinomial from  , and  combining like terms to get the resultant polynomial expression:

Then the resultant polynomial is:

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