- #1
Niaboc67
- 249
- 3
1.) Solve the equation for the indicated variable. (Enter your answers as a comma-separated list.)
S = n(n + 1)/3; for n
My answer: n = 1+√(1+12s)/2 , 1+√(1+12s)/2
For some reason I keep getting this as incorrect?
2.) Find all real solutions of the quadratic equation. (Enter your answers as a comma-separated list. If there is no real solution, enter NO REAL SOLUTION.)
7y^2 − y − 1/7 = 0
My answer: y= 1/14 (1-3√53) , 1/14(1+3√53)
3.) Find all real solutions of the equation. (Enter your answers as a comma-separated list. If there is no real solution, enter NO REAL SOLUTION.)
x^(4/3) − 5x^(2/3) + 6 = 0
My answer: 2√2 , 3√3
I don't understand why I keep getting these wrong. Please explain, thank you in advance.
S = n(n + 1)/3; for n
My answer: n = 1+√(1+12s)/2 , 1+√(1+12s)/2
For some reason I keep getting this as incorrect?
2.) Find all real solutions of the quadratic equation. (Enter your answers as a comma-separated list. If there is no real solution, enter NO REAL SOLUTION.)
7y^2 − y − 1/7 = 0
My answer: y= 1/14 (1-3√53) , 1/14(1+3√53)
3.) Find all real solutions of the equation. (Enter your answers as a comma-separated list. If there is no real solution, enter NO REAL SOLUTION.)
x^(4/3) − 5x^(2/3) + 6 = 0
My answer: 2√2 , 3√3
I don't understand why I keep getting these wrong. Please explain, thank you in advance.