The Exercise Correction 4 natural integers numbers

Back to the exercise 1)  a= x²-5x+4=x²- 2 x +1- 3 x +3 =(x - 1 )² - 3 (x- 1) =(x - 1 )(x - 1 - 3 )=(x - 1 )(x - 4 ) b =2x²+3x-2 =2x²+4x- x -2 =2x  (x +2 )-(x +2 ) =(x +2 )(2 x - 1 )  2)  3)  4) the product of two consecutive integers is a natural even number Back to the ex...

Solved Exercise 4 natural integers numbers

Correction 1) factorize the following expression: a= x²-5x+4  b= 2x²+3x-1 2) decompose 3240 and 1440 into a product of primes numbers 3) conclude a simple expression for the two numbers(the square root of 3240 and 1440) 4) k is a natural number, show that k (k +1) is an even number Correction ...

The Exercise Correction 3 natural integers numbers

Back to the exercise 1) we have for all primes numbers greater than 3 is are odd number , so there is an integer k for p = 2k +1 then : 2) we have and p is a prime number  greater than 3 ,so there are tow integers numbers a and b deux nombres entiers naturels such as and  : While a and b are consecutive  Back...

Solved Exercise 3 natural integers numbers

Correction 1) p is a prime number greater than 3 Set out : :          a) verify that a and b are integers natural          b) calculate: as a function of p Normal 0 21 false false false FR X-NONE ...

The Exercise Correction 2 natural integers numbers

Back to the exercise 1) 49 is not a prime number because may be divided by 7 we have the following numbers  2  ،  3  ،  5  ،  7  ،  11   ،  13  et 17 do not divide 239 and we have 17²>239>23² then 239 is a prime number ....................................................... 2)...

Solved Exercise 2 Natural number

correction 1) identify the primes numbers of the following numbers :49  ،  239   ،   407  ،   387  ،   1559  ،    8367  2) decompose the following numbers into prime numbers:   675  ،  1650  ،      5292    ،    6250 ...

The Exercise Correction 1 natural integers numbers

Back to the exercise 1) showing that a is a multiple of 3: we have: Back to the exercise Normal 0 21 false false false FR X-NONE AR-SA ...