2 goes into 400, that is

,
However, 2 goes into 400,
200 times.
Add 11 to both sides:
-4=-2t
divide 2 by both sides
2=t
Hope it helps! Comment if you have any questions!
Answer:
The solution of the given quadratic equation is 1 and (-10).
Step-by-step explanation:




Solving equation by quadratic formula:
Here , a = 1,b = 9, c = (-10)



The solution of the given quadratic equation is 1 and (-10).