D means common difference which is the last term minus second last term .
and u can use this formula only if there is a common difference.
Answer:
9 + 10 = 19
Step-by-step explanation:
The division of a polynomial is illustrated below.
<h3>What is a polynomial?</h3>
It should be noted that a polynomial simply means an expression that consist of variables which involves the operation of addition, subtraction, etc.
The way to divide the polynomial will be:
Set up the division problem.
Determine the first term of the quotient.
Multiply the answer by the divisor.
Write it below the like terms of the dividend.
Subtract the bottom binomial from the term above it.
Bring it down and repeat the steps until you reach the last term.
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This is the answer
first you must eliminate the denominator and that you do with multiplication
then eliminate the number that is on the same side of the letter and that you do it by placing the same number but with a different sign and so you have the answer.
also there is the check.