# an ordered pair that satisfies an equation in two variables is called its solution. a) root . b) solution.pls explain how its called root?

When our equation is linear equation then the pair of  value satisfied the equation is called the solution of this equation , As  :

x + y  = 5

And value ( 2  , 3  )  So

2 + 3 = 5

5 = 5  ( Satisfied  )

So , This pair is a solution of this equation  .

And when we have have quardetic equation  , than the value that makes our equation is zero is called zeros  .

and roots are basically the factors of this equation  , As  :  x2 + 5 x + 6  = 0

Here ( -  2 ,  -3 )  are two zeros as both makes our equation is equal to zeros , as

(-  2 )2 + 5 ( - 2 ) + 6  = 0

4 - 10 + 6

0 = 0

And

(-  3 )2 + 5 ( - 3 ) + 6  = 0

9 - 15 + 6

0 = 0

And  (  x + 2  ) And  ( x + 3 )  are two roots of this equation .

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