X2 - 45x + 324 = 0 . middle term splitting method?

 Factoring  x2-45x+324 

The first term is,  x2  its coefficient is  1 .
The middle term is,  -45x  its coefficient is  -45 .
The last term, "the constant", is  +324 

Step-1 : Multiply the coefficient of the first term by the constant   1 • 324 = 324 

Step-2 : Find two factors of  324  whose sum equals the coefficient of the middle term, which is   -45 .

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  -36  and  -9 
                     x2 - 36x - 9x - 324

Step-4 : Add up the first 2 terms, pulling out like factors :
                    x • (x-36)
              Add up the last 2 terms, pulling out common factors :
                    9 • (x-36)
Step-5 : Add up the four terms of step 4 :
                    (x-9)  •  (x-36)
             Which is the desired factorization

step-by-step explanation:

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1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

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1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

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step-by-step explanation: