Simplify (x -3)(x + 7) using the table method, and identify the resulting

The simplified form of given expression is .

Step-by-step explanation:

The given expression is

Here, we have to factors (x-3) and (x+7).

Factor (x-3) has two terms x and -3. Write these terms in first row.

Factor (x+7) has two terms x and 7. Write these terms in first column.

Now, find the elements of the table by multiplying corresponding rows and columns.

The elements of the table are x², -3x, 7x, -21.

Now, add all these elements.

Therefore the simplified form of given expression is .

step-by-step explanation:

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