Question

Hey friends
To solve this quadratic equation by factorisation method

Answer is X = - under root 2 and -5/under root 2

you do not have any idea so please do not take answer.

Thanks

Answer 1

 √2 x2 + 7x + 5√2
= √2 x2 + 5x + 2x + 5√2 
= x (√2x + 5) + √2(√2x + 5)= (√2x + 5)(x + √2)
Roots of this equation are the values for which (√2x + 5)(x + √2) = 0

∴ √2x + 5 = 0 or x + √2 = 0
⇒ x = -5/√2 or x = -√2
Hope this helps you
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