SOLUTION: Solve. (Enter your answers as a comma-separated list.) t^4-13t^2+42=0

Algebra.Com
Question 1058312: Solve. (Enter your answers as a comma-separated list.)
t^4-13t^2+42=0

Answer by ikleyn(52778)   (Show Source): You can put this solution on YOUR website!
.
Solve. (Enter your answers as a comma-separated list.)
t^4-13t^2+42=0
~~~~~~~~~~~~~~~~~~~~

 = .

Factor the left side

 = .

This equation deploys in two independent equations:


1.   =   --->   = 6  --->  t = +/-

and

2.   =   --->   = 7  --->  t = +/-.


Answer.  The solutions of the original equation are , , , and .


RELATED QUESTIONS

Solve. (Enter your answers as a comma-separated list.)... (answered by ikleyn)
Find all t in the interval [0, 2π] satisfying (cos t)2 + 4 cos t + 3 = 0. (Enter... (answered by Alan3354)
Find all values of t in the interval [0, 2π] satisfying the given equation. (Enter... (answered by jim_thompson5910)
Solve the equation. (Enter your answers as a comma-separated list. If there is no real... (answered by rothauserc)
Find all values of t in the interval [0, 2π] satisfying the given equation. (Enter... (answered by lwsshak3)
Solve. (Enter your answers as a comma-separated list.)... (answered by josgarithmetic,MathTherapy)
Solve the equation. (Enter your answers as a comma-separated list. Simplify your answers... (answered by addingup)
Find all values of t in the interval [0, 2π] satisfying the given equation. (Enter... (answered by lwsshak3)
Find all values of t in the interval [0, 2π] satisfying the given equation. (Enter... (answered by lwsshak3)