## anonymous 4 years ago can someone help in solving for t? t^6+4t^3=45 ......i got 5 and -9 as my answer but when i put it as my answer its saying its wrong :(

1. anonymous

you should have $t^3=9$ or $t^3=-3$

2. anonymous

can you show me the steps you took to get to this please?

3. anonymous

wait its saying those answers are wrong too...

4. anonymous

ok maybe that was wrong. lets start at the beginning. first write $t^6+4t^3-45=0$ then factor as $(t^3+9)(t^3-5)=0$ so $t^3=-9$ or $t^3=5$ and therefore $t=\sqrt[3]{-9}$ or $t=\sqrt[3]{5}$

5. anonymous

thank you both!