Answer:
The set of solution is {-6,6}
Step-by-step explanation:
That means 2x^2-72=0?
If yes, here the solution for this:
x^2-36=0 (divise both sides by 2)
x^2=36
x^2=6^2
We have x=6 or x= - 6
The set of solution is {-6,6}.
Hope that useful for you.
Answer:
the answer is 3.75
Step-by-step explanation:
because 3/5 equal to 4/x. x=3.75
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 <em>quadratic formula</em>, we can solve that <u>u = 1/3 and u = -2.</u>
We can go back to our original substitution and say that <em>sqrt(t) = 1/3</em>. The sqrt(t) can not be -2 because a <u>square root can not be negative.</u>
If we solve the equation sqrt(t) = 1/3, we get that t=1/9.
Answer: try an energy drink such as Red Bull or coffee. You should take a nap though when u can :)
Answer: -45
Step-by-step explanation:
16 divided by 8 = 2
2 divided by -1 = -2
-2 * (9(-5) = -45
