Register
Solve: 125x^3 + 343=0 Find all Complex Roots.
99.0k views
4 votes
Solve: 125x^3 + 343=0
Find all Complex Roots.

User Rishabh Chandel
by
8.3k points

1 Answer

2 votes

125x^3+343=0 \\(5x)^3+7^3=0 \\(5x+7)(25x^2-35x+49)=0 \\25x^2-35x+49=0 \\a=25,b=-35,c=49 \\ \\x_(1,2)= (-(-35)\pm √((-35)^2-4*25*49) )/(2*25)=(35\pm √(-3675) )/(50)=(35\pm i√(3675) )/(50)
User Arjun Kalidas
by
8.1k points
← Prev Question Next Question →

Related questions

User Awais Fayyaz
asked Mar 8, 2024 37.2k views
Which of the following is the solution of 0.125x+1-0.25x<-3
Awais Fayyaz asked Mar 8, 2024
by Awais Fayyaz
7.7k points
1 answer
5 votes
37.2k views
User Mukund Jalan
asked May 12, 2024 133k views
Y = 125x + 50 what will it take to get to 500 feet
Mukund Jalan asked May 12, 2024
by Mukund Jalan
7.7k points
1 answer
4 votes
133k views
User Tobogranyte
asked Oct 9, 2024 45.7k views
(3x^9y^2/125x^2)^(-1/5)
Tobogranyte asked Oct 9, 2024
by Tobogranyte
7.8k points
1 answer
4 votes
45.7k views
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Other Questions

What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
Write words to match the expression. 24- ( 6+3)
Link Copied!