Question

Find the roots of
the quadratic equation 2x2+ax-a2=0

Answer 1

Answer:

-a

Step-by-step explanation:

Given  2x2 + ax - a2 = 0  

⇒  2x2 + 2ax - ax  - a2 = 0  

⇒  2x(x + a) - a(x  + a) = 0  

⇒(2x - a)(x + a) = 0

∴x = a /2 or - a.