3t + 5sqrt (t) - 2 = 0 solve by using substitution

The answer is t=1/9

Step-by-step explanation:

If we substitute sqrt (t) = u, then we can write the equation as 3u^2+5u-2=0.

Using the quadratic formula, we can solve that u = 1/3 and u = - 2.

We can go back to our original substitution and say that sqrt (t) = 1/3. The sqrt (t) can not be - 2 because a square root can not be negative.

If we solve the equation sqrt (t) = 1/3, we get that t=1/9.

This is something that I haven't learned yet but I think the answer is 25