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Check if (√2, 4√2) is the solution of the equation x - 2y = 4. - Mathematics

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Check if `(sqrt2", "4sqrt2)` is the solution of the equation x - 2y = 4.

 

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Solution

Putting `x = sqrt2" and "y = 4sqrt2`  in the L.H.S of the given equation,

`x-2y=sqrt2-2(4sqrt2)`

          `=sqrt2-8sqrt2`

          `=-7sqrt2`

           ≠ 4

L.H.S ≠ R.H.S

`"Therefore, "(sqrt2", "4sqrt2)" is not a solution of this equation."`

 

Concept: Solution of a Linear Equation
  Is there an error in this question or solution?

APPEARS IN

NCERT Class 9 Maths
Chapter 4 Linear Equations in two Variables
Exercise 4.2 | Q 3.4 | Page 70

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