Express 29 as difference of squares
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Answer :
We know : 29 is a prime number , So
29 = 29 × 1
And
Difference of two square = 29 , So
x2 - y2 = 29
( x + y ) ( x - y ) = 29 ( We know x2 - y2 = ( x + y ) ( x - y ) )
And
29 = 29 × 1
So,
x + y = 29
And
x - y = 1 , We add both equation and get
2x = 30
x = 15 , Substitute that we get
15 + y = 29
y = 14
So,
152 - 142 = 29ans
hope it helps!!☺☺
We know : 29 is a prime number , So
29 = 29 × 1
And
Difference of two square = 29 , So
x2 - y2 = 29
( x + y ) ( x - y ) = 29 ( We know x2 - y2 = ( x + y ) ( x - y ) )
And
29 = 29 × 1
So,
x + y = 29
And
x - y = 1 , We add both equation and get
2x = 30
x = 15 , Substitute that we get
15 + y = 29
y = 14
So,
152 - 142 = 29ans
hope it helps!!☺☺
Anonymous:
the last line is (15)square - (14)square...ok....its not 152-142
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