Find The Roots Of Quadratic Equation: 2x2+ 5x + 2 = 0? – InterviewSolution

InterviewSolution

1.

Find The Roots Of Quadratic Equation: 2x2+ 5x + 2 = 0?

Answer»

2x2+ 4x + X + 2 = 0

2x(x + 2) + 1(x + 2) = 0

(x + 2)(2x + 1) = 0 => x = -2, -1/2.

2x2+ 4x + x + 2 = 0

2x(x + 2) + 1(x + 2) = 0

(x + 2)(2x + 1) = 0 => x = -2, -1/2.

Discussion

No Comment Found

Related InterviewSolutions

10 Books Are Placed At Random In A Shelf. The Probability That A Pair Of Books Will Always Be Together Is -?
What Is The Probability That A Leap Year Has 53 Sundays And 52 Mondays?
From A Pack Of Cards Two Cards Are Drawn One After The Other, With Replacement. The Probability That The First Is A Red Card And The Second Is A King Is -?
The Probability That A Speaks Truth Is 3/5 And That Of B Speaking Truth Is 4/7. What Is The Probability That They Agree In Stating The Same Fact?
The Sector Of A Circle Has Radius Of 21 Cm And Central Angle 135o. Find Its Perimeter?
The Length Of A Rectangle Is Two - Fifths Of The Radius Of A Circle. The Radius Of The Circle Is Equal To The Side Of The Square, Whose Area Is 1225 Sq.units. What Is The Area (in Sq.units) Of The Rectangle If The Rectangle If The Breadth Is 10 Units?
Find The Roots Of Quadratic Equation: X2+x - 42 = 0?
Find The Roots Of Quadratic Equation: 2x2+ 5x + 2 = 0?
The Price Of A Certain Item Is Increased By 15 %. If A Consumer Wants To Keep His Expenditure On The Item Same As Before How Much Percent Must He Reduce His Consumption Of That Item?
10 % Of The Electorate Did Not Cast Their Votes In An Election Between Two Candidates. 10 % Of The Votes Polled Were Found Invalid. The Successful Candidate Got 54 % Of The Valid Votes And Won By A Majority Of 1620 Votes. The Number Of Voters Enrolled On The Voter's List Was?