Thursday

August 21, 2014

August 21, 2014

Posted by **layth** on Monday, September 20, 2010 at 12:40pm.

i been told by my teacher to use quadratic formula , and him and i did it , we end up having , x1=-5.15-5.89i and x2=-5.15+5.89i, y1=30/(-5.15-5.89i) and y2=30/(-5.15+5.89i).and he told to go from there, but i cant get final answe. as you know i=square root of -1. but i can solve this

(-5.15-5.89i)times 30/(-5.15-5.89i) ???

- algebra -
**Anonymous**, Monday, September 20, 2010 at 12:45pmxy=30 and x+y = 10.3

that means y = 10.3-x from equation two now put that into equation one

x(10.3-x)=30

x2-10.3x+30 do the quadratic thing now

**Related Questions**

College Math II - Solve by using the quadratic formula. x^2 + 6x + 6 = 0 I am ...

Algebra - For this equation x^(2) + x + 2 which you can't factor but then you ...

Algebra - I am still having trouble solving this problem. Use the quadratic ...

math,algebra - can someone help me out factor out this 0=16t^2-122t+180 i have ...

math - (4.35E-2 - x)(7.56E-2 -x ) ============================ (0.324 + 2x)2 ...

Math - Use the quadratic formula to solve each of the following quadratic ...

i need help..algebra/math - solve by using the quadratic formula: x2 plus x ...

physics repost - I am still trying to solve for H in this equation but I am ...

physics repost - I am still trying to solve for H in this equation but I am ...

algebra - Solve the quadratic equation: 2x(squared)+6x+12=0 I know you have to ...