Finding Square of a Number Using (a+b)^2 Identity
Trending Questions
Q.
Evaluate the following without actual multiplication :
Q. What are the last two digits in the square of 39?
- 21
- 11
- 41
- 31
Q. Divide : 20(y+4)(y2+5y+3)÷5(y+4)
- y2+5y+3
- 4(y2−5y+3)
- (y2−5y+3)
- 4(y2+5y+3)
Q.
Evaluate the following without actual multiplication :
Q. If x+y=5 and x2+y2=111. then value of x3+y3 is
- 770
- 227
- 555
- 115
Q. State true or false:
If x2+7x=44, then x is 4 or 11.
- True
- False
Q.
Use the short cut method to find (110)2.
13100
12200
12100
12300
Q. Square of number 37 can be found in two steps.
![](https://search-static.byjusweb.com/question-images/byjus/infinitestudent-images/ckeditor_assets/pictures/12072/content_61299_998f13d874bf78a4a5090326a194f92e9f115b4c20160701-5603-uundzw.png)
What is a?
![](https://search-static.byjusweb.com/question-images/byjus/infinitestudent-images/ckeditor_assets/pictures/12072/content_61299_998f13d874bf78a4a5090326a194f92e9f115b4c20160701-5603-uundzw.png)
What is a?
50
75
25
100
Q.
Fill in the blanks:- 62 + 72 + (