SOLUTION: Demonstrate that 2+6i is a solution to the equation x^2-40x+40=0
Algebra.Com
Question 35182: Demonstrate that 2+6i is a solution to the equation x^2-40x+40=0
Answer by venugopalramana(3286) (Show Source): You can put this solution on YOUR website!
Demonstrate that 2+6i is a solution to the equation x^2-40x+40=0
SUBSTITUTING FOR X ..
(2+6i)^2-40(2+6i)+40
=4+36i^2+2*2*6i-80-240i+40
=4-36+24i-80-240i+40=
=NO...IT IS NOT A SOLUTION AS IT IS NOT ZERO
RELATED QUESTIONS
Use the distance formula to find the equation of a parabola with a focus at (0, -10) and... (answered by Boreal)
Number 1
A chemist is making a solution that is to be 55% chlorine. He has one... (answered by stanbon)
please I need help solving this word problem.
- determine what number must be added to... (answered by josgarithmetic)
Write a polynomial equation with roots 2 and -6i.
X^3 - _ x^2 + _ x - _ = 0
This is... (answered by ewatrrr,LinnW)
What three techniques can be used to solve a quadratic equation? Demonstrate these... (answered by RAY100)
A quadratic equation x^2+bx+c=0 has the complex roots 3+6i and 3-6i. Find the values of b (answered by richwmiller)
What three techniques can be used to solve a quadratic equation, demonstrate each using... (answered by nerdybill)
Hello, I soloved this quadratic equation and came up with a negative answer which I think (answered by emargo19,sudhanshu_kmr)
Ralph wants to find the solution to a system of equations using y = x - 2 and y = x2 + 6x (answered by josgarithmetic)