SOLUTION: This test is very difficult and any help would be so very much appriciated, please reply asap. The problem is:
Use synthetic substitution to find F(4) given {{{F(x)=2x^3-5x^2-18
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-> SOLUTION: This test is very difficult and any help would be so very much appriciated, please reply asap. The problem is:
Use synthetic substitution to find F(4) given {{{F(x)=2x^3-5x^2-18
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Question 122887: This test is very difficult and any help would be so very much appriciated, please reply asap. The problem is:
Use synthetic substitution to find F(4) given Answer by jim_thompson5910(35256) (Show Source):
Set up the synthetic division table by placing the value we want to evaluate (in this case 4) in the upper left corner and placing the coefficients of the polynomial to the right of the test zero.
4
|
2
-5
-18
19
|
Start by bringing down the leading coefficient (it is the coefficient with the highest exponent which is 2)
4
|
2
-5
-18
19
|
2
Multiply 4 by 2 and place the product (which is 8) right underneath the second coefficient (which is -5)
4
|
2
-5
-18
19
|
8
2
Add 8 and -5 to get 3. Place the sum right underneath 8.
4
|
2
-5
-18
19
|
8
2
3
Multiply 4 by 3 and place the product (which is 12) right underneath the third coefficient (which is -18)
4
|
2
-5
-18
19
|
8
12
2
3
Add 12 and -18 to get -6. Place the sum right underneath 12.
4
|
2
-5
-18
19
|
8
12
2
3
-6
Multiply 4 by -6 and place the product (which is -24) right underneath the fourth coefficient (which is 19)
4
|
2
-5
-18
19
|
8
12
-24
2
3
-6
Add -24 and 19 to get -5. Place the sum right underneath -24.
4
|
2
-5
-18
19
|
8
12
-24
2
3
-6
-5
Since the last column adds to -5, we have a remainder of -5. This means is not a factor of
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