the difference between two numbers is 14 and the difference between their square is 48 find the numbers
Answers
Answer:Hi ,
Convert this word problem into
algebraic equation.
let the two numbers be x and y
Difference between two numbers is
equal to 14
x - y = 14 -----( 1 )
Difference between their squares is
equal to 448
x^2 - y^2 = 448
( x + y ) ( x - y ) = 448
( x + y ) × 14 = 448
[ from ( 1 ) ]
x + y = 448/ 14
x + y = 32 ----( 2 )
Add equations ( 1 ) and ( 2 ) , we get
2x = 46
x = 46/2
x = 23
Put x = 23 in equation ( 2 )
23 + y = 32
y = 32 - 23
y = 9
Therefore ,
Required two numbers are x = 23
and y = 9
I hope this helps you.
Answer:
Step-by-step explanation:
here is your answer !!
let the number be x
and other number is y
condition :-
according to question !!
x - y = 14
or
y - x = 14
---------------------------(1)
according to question !
difference between their squares
is =>
x² - y² = 448
or
( 14 + y ) ² - y² = 448
196 + y² + 28y - y² = 448
252 / 28 = y
y = 9
=> on putting the value of y in equation 1 we get
x = 23 , 9
y = 9 , 23
hence , two Answer possible !!
hope it helps you !!