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rebecabosca
19.05.2021 •
Mathematics
Can I see how long division works on these? pls no sketchy links
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Ответ:
Step-by-step explanation:
11) First write in decreasing exponential terms and fill in blanks with zeros.
Our goal is to eliminate all term in the dividend by subtraction
2v - 2 | 2v³ - 16v² + 0v + 13
we see that 2v needs to be multiplied by 1v² to eliminate the first term
v²
2v - 2 | 2v³ - 16v² + 0v + 13
- (2v³ - 2v²)
0 - 14v²
multiply your estimate by your divisor and subtract from the dividend.
bring down the next term and repeat.
v² -7v
2v - 2 | 2v³ - 16v² + 0v + 13
- (2v³ - 2v²)
0 - 14v² + 0v
-(-14v² + 14v)
- 14v
repeat again
v² - 7v - 7
2v - 2 | 2v³ - 16v² + 0v + 13
- (2v³ - 2v²)
0 - 14v² + 0v
-(-14v² + 14v)
- 14v + 13
-(-14v + 14)
-1
and remainder gets put over the divisor and appended
v² - 7v - 7 - 1/(2v - 2)
13) Same process
5a + 1 | 40a³ - 12a² - 39a - 5
8a²
5a + 1 | 40a³ - 12a² - 39a - 5
-(40a³ + 8a²)
-20a² - 39a
8a² - 4a
5a + 1 | 40a³ - 12a² - 39a - 5
-(40a³ + 8a²)
-20a² - 39a
-(-20a² - 4a)
-35a - 5
8a² - 4a - 7
5a + 1 | 40a³ - 12a² - 39a - 5
-(40a³ + 8a²)
-20a² - 39a
-(20a² - 4a)
-35a - 5
-(-35a - 7)
2
8a² - 4a - 7 + 2/(5a + 1)
Ответ:
1 is a. 2 is b
1) adding two each time ensures you select numbers of the same parity ,(,even or odd)
2) adding one each time selects consecutive numbers
Step-by-step explanation: