By the method of completion of squares solve equation, Mathematics

By the method of completion of squares show that the equation 4x2+3x +5 = 0 has no real roots.

Ans:    4x2+3x+5=0

⇒ x2 + 3/4x + 5 = 0

⇒   x2 + 3/4x + (3/8)2= -5/4+9/64

(x+3/8)2 = -71/64

(x+3/8)2 = -71/64

x+3/8 =1908_root.png

Hence QE has no real roots.

 

Posted Date: 4/8/2013 3:19:23 AM | Location : United States







Related Discussions:- By the method of completion of squares solve equation, Assignment Help, Ask Question on By the method of completion of squares solve equation, Get Answer, Expert's Help, By the method of completion of squares solve equation Discussions

Write discussion on By the method of completion of squares solve equation
Your posts are moderated
Related Questions
prove that every non-trivial ingetral solution (x,y,z)of the diophantine equation Xsquare +Ysquare=Zsquare satisfies gcd(x,y)=gcd(x,z)=gcd(y,z)

how it is

Kelli calls her grandmother every month. Every other month,Kelli also calls her cousin in January, how many calls will Kelli have made to her grandmother and her cousin by the end

Suppose m be a positive integer, then the two integer a and b called congurent modulo m ' if a - b is divisible by m i.e.  a - b = m where is an positive integer. The congru

Class Mid points This is very significant values which mark the center of a provided class. They are acquired by adding together the two limits of a provided class and dividi

Rob purchased picnic food for $33.20 to share along with three of his friends. They plan to split the cost evenly among the four friends. How much does every person required to pay


You are given the following regression results estimating the demand for widgets based on time series data for the past 40 months. Q t = 2.5 - 0.3 x P t + 12 x M t Where Q

what is 24566x12567=

application of radious of curvatur