# Encarta Instant Answers

Someone just showed me this and its cool ! (Thanks Dan !)

Add encarta@conversagent.com to your messenger and start asking some questions….

For example “How many pepole are in israel ?”

Encarta® Instant Answers says:

There are 6,276,883 people in Israel.

And another one: “Solve 2x^2+7x=5”

Ohad Israeli says:

Solve 2x^2+7x=5

Encarta® Instant Answers says:

Equation Solver:

Let's solve the quadratic equation:

2x^2+7x = 5

First we need to put the equation in the form:

ax^2 + bx + c = 0

For this, we set the equation to equal 0, and arrange the terms from the highest exponent to the lowest:

2x^2+7x-5 = 0

We have:

a=2 b=7 c=-5

We can now apply the quadratic formula:

x = ( -b ± √(b²-4ac) ) / 2a

We find two solutions:

x=0.60849528301415 or x=-4.1084952830142