Product of two consecutive even numbers :
Even numbers are 2,4,6,8,10,12,14,16,18,20,22........
Even number means when we divide a number with 2,then the
remainder is equal to zero.
Difference between the two even numbers is 1.
Now we will discuss the product of two even numbers. Now the
product of two even numbers assumed to be 4x6 can be written as (5-1)x(5+1).
4x6= (5-1)x(5+1)
From the above we write general formula as 4x6= (5-1)x(5+1)=52-12 =25-1=24
Now we can observe the result as one less than the square
number. So now we can observe the following table. Column 1&2 reprecent the
adjacent even numbers. Column 3 represent the product of two adjacent even
numbers. Column 4 represent the nearest
square number. This will arrive by
adding 1 to the product of two even
numbers.
NUMBER1
|
NUMBER2
|
PRODUCT
|
NEAREST SQUARE NO.
|
2
|
4
|
8
|
9
|
4
|
6
|
24
|
25
|
6
|
8
|
48
|
49
|
8
|
10
|
80
|
81
|
10
|
12
|
120
|
121
|
12
|
14
|
168
|
169
|
14
|
16
|
224
|
225
|
16
|
18
|
288
|
289
|
18
|
20
|
360
|
361
|
20
|
22
|
440
|
441
|
22
|
24
|
528
|
529
|
24
|
26
|
624
|
625
|
26
|
28
|
728
|
729
|
28
|
30
|
840
|
841
|
30
|
32
|
960
|
961
|
32
|
34
|
1088
|
1089
|
34
|
36
|
1224
|
1225
|
36
|
38
|
1368
|
1369
|
38
|
40
|
1520
|
1521
|
40
|
42
|
1680
|
1681
|
42
|
44
|
1848
|
1849
|
44
|
46
|
2024
|
2025
|
46
|
48
|
2208
|
2209
|
48
|
50
|
2400
|
2401
|
50
|
52
|
2600
|
2601
|
52
|
54
|
2808
|
2809
|
Now we will see how to solve the problems based on the
product two consecutive even numbers.
Problem 1:product of two consecutive even numbers is 360. What
are those numbers.
Solution: step1: product of two consecutive even numbers is
360
Step2:
add 1 to 361 it will become 361
Step3:
finding the square root of 361 that is 19
Step4:then
add 1 to 19, and subtract 1 from 19.
Step5:
then those numbers are 18,20
Problem2:product of two consecutive even numbers is 224. What
are those numbers.
Solution: step1: product of two consecutive even numbers is
224
Step2:
add 1 to 224 it will become 225
Step3:
finding the square root of 225 that is 15
Step4:then
add 1 to 15, and subtract 1 from 15.
Step5:
then those numbers are 14,16.
Problem 3:product of two consecutive even numbers is 288. What
are those numbers.
Solution: step1: product of two consecutive even numbers is
288
Step2:
add 1 to 288 it will become 289
Step3:
finding the square root of 289 that is 17
Step4:then
add 1 to 17, and subtract 1 from 17.
Step5:
then those numbers are 16,18
Problem 4:product of two consecutive even numbers is 188. What
are those numbers.
Solution: step1: product of two consecutive even numbers is
188
Step2:
add 1 to 188 it will become 189
Step3:
finding the square root of 189 that is 17
Step4:then
add 1 to 17, and subtract 1 from 17.
Step5:
then those numbers are 16,18.
Problem 5:product of two consecutive even numbers is 624. What
are those numbers.
Solution: step1: product of two consecutive even numbers is
624
Step2:
add 1 to 624 it will become 625
Step3:
finding the square root of 625 that is 25
Step4:then
add 1 to 25, and subtract 1 from 25.
Step5:
then those numbers are 24,26.
Problem 6:product of two consecutive even numbers is 1088. What
are those numbers.
Solution: step1: product of two consecutive even numbers is
1088.
Step2:
add 1 to 1088 it will become 1089
Step3:
finding the square root of 1089 that is 33
Step4:then
add 1 to 33, and subtract 1 from 33.
Step5:
then those numbers are 32,34.
Problem 7:product of two consecutive even integers is 440. What are those numbers.
Solution: step1: product of two consecutive even numbers is
440.
Step2:
add 1 to 440 it will become 441
Step3:
finding the square root of 441 that is 21
Step4:then
add 1 to 21, and subtract 1 from 21.
Step5:
then those numbers are 20,22.
.
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