1.

Solve the given quadratic equation by completing square method 2x^2 + 13 x + 15 =0​

Answer»

Answer:

x= -3/2 or -5

Step-by-step explanation:

2x^2+13x+15=0

we KNOW that the completing SQUARE METHOD is

x=-b+-√b^2-4ac/2a

now,b^2-4ac=49

so x=-13+-√49/2×2

=-13+-7/4

now,x=-13+7/4= -6/4

= -3/2

or,x=-13-7/4

= -5


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