Find the roots of the quadratic equation 2 ?! − 5 ? − 7 = 0 using factorization method.
Answers
Answered by
3
2
x
2
+7x+5
2
=0
or,
2
x
2
+2x+5x+5
2
=0
or, x
2
(x+
2
)+5(x+
2
)=0
or, (x
2
+5)(x+
2
)=0
⇒x=−
2
5
,−
2
.
These are the required roots
Similar questions