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

Mathematics

2 answers:

notsponge [240]3 years ago

3 0

Answer:

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.

dlinn [17]3 years ago

3 0

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

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