SOLUTION: SOLVE.
3x^2+x=-9
ANSWER CHOICES
A.(1 + i√109)/6 , (1-i√109)/6
B.(1 + i√107)/6 , (1-i√107)/6
C.(-1 + i√107)/6 , (-1-i√107)/6
D.(-1 + i
Algebra.Com
Question 595876: SOLVE.
3x^2+x=-9
ANSWER CHOICES
A.(1 + i√109)/6 , (1-i√109)/6
B.(1 + i√107)/6 , (1-i√107)/6
C.(-1 + i√107)/6 , (-1-i√107)/6
D.(-1 + i√109)/6 , (-1-i√109)/6
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given equation.
Get every term to the left side.
Notice that the quadratic is in the form of where , , and
Let's use the quadratic formula to solve for "x":
Start with the quadratic formula
Plug in , , and
Square to get .
Multiply to get
Subtract from to get
Multiply and to get .
Simplify the square root (note: If you need help with simplifying square roots, check out this solver)
or Break up the expression.
So the solutions are or
RELATED QUESTIONS
1.(-4+2i)+(6-3i)
2.6√-12
3.√-8*√-32
4.i^65... (answered by stanbon)
1.(-4+2i)+(6-3i)
2.6√-12
3.√-8*√-32
4.i^65... (answered by Alan3354)
simplify these showing all work please, dont skip any steps.
1. √-36
2.... (answered by robertb)
I need help mulitplying this: (√[6] + 2√[2])(4√[6] – 3√[2])
(answered by jim_thompson5910)
Hi,I desperately need help with the following questions:
1. Square root n^2 + 12n +... (answered by jim_thompson5910)
Solve the following.
1. 9∜7 + 8∜7 - 3∜7
2. 1/2 √2 + 1/2... (answered by lynnlo)
Prove that √i =... (answered by robertb)
3√w+1=6 (answered by rfer)
3√w+1=6 (answered by Fombitz)
If 2 ≤ x ≤ 6, which of the following has the greatest value?
(A) √x (answered by Fombitz)