Questions of WORD PROBLEMS 21 Aug
Question for practice
The following questions are more helpful for class tenth students for all boards.
Questions 13. A number when added to its square result becomes the double of square of the number. find the number?
Submit your answer here in the comments or wait for answer
Ans. Let the number = x
ReplyDeletex + x^2 = 2x^2
or x = x^2/1
or x^2/x = 1
or x = 1
therefore, the number is 1.
No...
DeleteCheck this
x + x^2 = 2x^2
x = 2x^2 - x^2
x = x^2
0 = x^2 - x
0 = x(x - 1)
it means either x = 0 or 1
let the number be x.
ReplyDeletetherefore,
x+x^2=2x^2
or x=x^2/1
then x=1
therefore,the number is 1.
No...
DeleteCheck this
x + x^2 = 2x^2
x = 2x^2 - x^2
x = x^2
0 = x^2 - x
0 = x(x - 1)
it means either x = 0 or 1
let the number be x
ReplyDeletex + x^2= 2x^2
x = x^2
x = x * x
x = x/x
x = 1
∴ the number is 1
correct eqn. but answer is not correct
DeleteNo...
Check this
x + x^2 = 2x^2
x = 2x^2 - x^2
x = x^2
0 = x^2 - x
0 = x(x - 1)
it means either x = 0 or 1
This comment has been removed by the author.
ReplyDelete:)
DeleteThis comment has been removed by the author.
Deletex+x^2=2x^2
ReplyDeletex(1+x)=x(2x)
1+x=2x
x=1
Correct Eqn. but answer is wrong !!!
DeleteCheck this
x + x^2 = 2x^2
x = 2x^2 - x^2
x = x^2
0 = x^2 - x
0 = x(x - 1)
it means either x = 0 or 1
good...
ReplyDeleteCheck this
x + x^2 = 2x^2
x = 2x^2 - x^2
x = x^2
0 = x^2 - x
0 = x(x - 1)
it means either x = 0 or 1
x + x^2=2x^2
ReplyDeletex = x^2
0=x^2 - x
0= x(x-1)
x-1=0 x=0
x=1
therefore the number is 1 or 0