Thursday

October 2, 2014

October 2, 2014

Posted by **Jimmy** on Wednesday, January 10, 2007 at 5:45pm.

Let's use the quadratic formula to solve for x and express those solutions in a+bi form.

x = [-b + or - sqrt(b^2 - 4ac)]/2a

Note: sqrt = square root.

a = 2, b = 3, and c = 8 from your problem.

Therefore:

x = [-3 + or - sqrt(3^2 - 4*2*8)]/2*2

x = [-3 + or - sqrt(-55)]4

x = [-3 + or - i sqrt(55)]/4

Solutions:

x = [-3 + i sqrt(55)]/4 = -3/4 + [sqrt(55)/4]i

x = [-3 - i sqrt(55)]/4 = -3/4 - [sqrt(55)/4]i

I hope this will help.

**Answer this Question**

**Related Questions**

Math - Use the quadratic formula to solve each of the following quadratic ...

algebra 2 - Would some one look at these problems and see if I got them right ...

precalculus - Solve the logarithmic equation. Express your solutions in exact ...

Math - 2 - Solve the exponential equation. Express your solutions in exact form ...

Algebra II - 1)What method(s) would you choose to solve the equation: x2 + 2x - ...

Math 111 - Solve the equation by the square root property. If possible, simplify...

math - Solve the system 6x+4y = 12 9x+6y = 18 If the system has infinitely many ...

pre calculus - Solve the exponential equation Express you solutions in exact ...

college algebra - Solve the exponential equation. Express your solutions in ...

calculus - Solve the system by the method of your choice. Identify systems with ...