calculate the value of 54^2 - 46^2
show the working.
THANK U.
Calculate the value of 54^2 - 46^2?
2009-06-25 10:45 am
回答 (9)
2009-06-25 10:55 am
✔ 最佳答案
54^2 - 46^2=800 anwer//
2009-06-25 10:53 am
54^2 - 46^2
= (54+46)(54-46)
= 100*8
= 800
= (54+46)(54-46)
= 100*8
= 800
2016-04-11 3:59 pm
Pi is an irrational number, like the square root of two. This means that it cannot be represented by a fraction and its decimal representation never comes to a repeating number (like .1666666666). On supercomputers they've calculated pi out to over a million digits, but no one knows the exact value of pi and no one ever will. Like a previous answerer said, it is the circumference divided by the diameter, but that's only a definition in geometric terms.
2009-06-25 12:06 pm
a^2 - b^2 ≡ (a + b)(a - b)
54^2 - 46^2
= (54 + 46)(54 - 46)
= 100(8)
= 800
54^2 - 46^2
= (54 + 46)(54 - 46)
= 100(8)
= 800
2009-06-25 11:05 am
We know that (a+b)(a-b)=a^2-b^2
Here you provided the a^2 and b^2
Here a=54 and b=46
Now (a+b)(a-b)
=(54+46)(54-46)
=100*8
=800
Cheers...!!!
Here you provided the a^2 and b^2
Here a=54 and b=46
Now (a+b)(a-b)
=(54+46)(54-46)
=100*8
=800
Cheers...!!!
2009-06-25 11:05 am
We know that (a+b)(a-b)=a^2-b^2
Here you provided the a^2 and b^2
Here a=54 and b=46
Now (a+b)(a-b)
=(54+46)(54-46)
=100*8
=800
Cheers...!!!
Here you provided the a^2 and b^2
Here a=54 and b=46
Now (a+b)(a-b)
=(54+46)(54-46)
=100*8
=800
Cheers...!!!
2009-06-25 10:56 am
You could multiply out each square and then take the difference, but there's a quicker way. So quick that you can do it in your head!
You should know that a^2 - b^2 = (a+b)(a-b). So here we have:
(54+46)(54-56) =
(100)(8) =
800
You should know that a^2 - b^2 = (a+b)(a-b). So here we have:
(54+46)(54-56) =
(100)(8) =
800
2009-06-25 10:55 am
54 x 54 = 216 + 2700 = 2916 ..............................(1)
(using long multiplication we multiply 54 by 4 and then 54 by 50)
Similarly 46 x 46 = 276 + 1840 = 2116.................(2)
Taking amount (2) from amount (1)
Answer = 800
Ps
You can also use the difference between 2 squares as answers above have done
(using long multiplication we multiply 54 by 4 and then 54 by 50)
Similarly 46 x 46 = 276 + 1840 = 2116.................(2)
Taking amount (2) from amount (1)
Answer = 800
Ps
You can also use the difference between 2 squares as answers above have done
2009-06-25 10:54 am
54 * 54 = 2916
46 * 46 = 2116
2916 - 2116 = 800
Note: Any number squared is just that number times itself.
46 * 46 = 2116
2916 - 2116 = 800
Note: Any number squared is just that number times itself.
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