Question

by using the formula solve the equation x^2-(1+ root 2) x +root 2=0

Answer 1

Hey... mate here is your answer..

Given quadratic function:

y=x2−(x−2)(2x−1)

y=x2−2x2+5x−2

y=−x2+5x−2

The roots of given function will be at y=0 i.e.

−x2+5x−2=0

x2−5x+2=0

Now, using quadratic formula, the roots of above quadratic equation are given as

x1,2=−(−5)±√(−5)2−4(1)(2)2(1)

=5±√172

Thus, the roots of given quadratic function are real & distinct given as

x=5±√172

hope this is usefull to you...

Follow me mate..

Keep smiling

Answer 2

Answer:

x1=-1

x2=-1.414213562