SOLUTION: Can someone help? Solve: 6t^4=-t^2+5 I keep getting t=radical 5/radical 6 and t=+or-I the answer in the back of the book is t=+or-radical30/6 and t=+or-I What am I doing w

Question 59690This question is from textbook Intermediate Algebra Concepts and Graphs
: Can someone help?

Solve: 6t^4=-t^2+5
I keep getting t=radical 5/radical 6 and t=+or-I
the answer in the back of the book is t=+or-radical30/6 and t=+or-I
What am I doing wrong? This question is from textbook Intermediate Algebra Concepts and Graphs

Answer by chitra(359) (Show Source): You can put this solution on YOUR website!
The given expression is:

6t^4 = -t^2 + 5

Adding (t^2 - 5) on both sides of the given expression, we get:

6t^4 + t^2 - 5 = 0

Using the Method of Factorization, we get:

6t^4 + 6t^2 - 5t^2 - 5 = 0

==> 6t^2(t^2 + 1) - 5(t^2 + 1) = 0

==> (6t^2 - 5)(t^2 + 1) = 0

Thus, we get:

6t^2 - 5 = 0 and t^2 + 1 = 0

==> t = + or - radical(5/6)

and t = + or - I

So, your answer is perfectly right!!

RELATED QUESTIONS
HI, please help me solve this. The answer is 16, but I keep getting 6. Thanks in advance. (answered by CharlesG2,ankor@dixie-net.com,solver91311)

Okay, here goes another easy one that I can't solve: Printer A can print a report in 3... (answered by amnd)

Good evening! I'm having trouble finding the zeros for f(t) = t^5 -6t^3 + 9t I... (answered by Edwin McCravy)

Please can you help me with this equation, I have tried but can't figure it out. The... (answered by fners)

can you please help me with 5=-1(2+6t)-t i got up to 5=-2-6t-t i just dont understand... (answered by Finavon)

I keep getting this question wrong, "Find sin t and cos t for the value of t= 5(pi)." Any (answered by josgarithmetic)

i need help with radical t+12-t=0 and 5 radical x + 1 =3 (answered by jim_thompson5910)

{{{ (t^2-1)/(t^2-4) }}} + {{{ (9t+9)/(4t+12) }}} * {{{ (2-t)/(t^2+2t-3) }}} The back... (answered by Alan3354,greenestamps,MathTherapy)

This is not from numeric factions. well in the back of the book it says the answer is... (answered by solver91311)