SOLUTION: if three times the square of a negative number is added to the product of 25 and the number, the result is 18. Find the number Please help... Dont get how to do this... Please i w

Question 862381: if three times the square of a negative number is added to the product of 25 and the number, the result is 18. Find the number
Please help... Dont get how to do this... Please i would appreciate it! :)
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

Let

represent the value of the negative number that you seek. That number squared is

, and three times that is

. The product of 25 and the number is

. Adding these two terms the result is 18:

Standard form

Solve the quadratic (it factors or you can use the quadratic formula). Choose the negative root because you are given that the original number was negative.

John

My calculator said it, I believe it, that settles it

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