Wednesday

April 1, 2015

April 1, 2015

Posted by **carla** on Saturday, July 14, 2007 at 6:53am.

2x^2+10x+11

a=2 b=10 c=11

x=-10(plus or minus) sqrt 10^2-4(2)(11)

over 2(2)

-10(plus or minus) sqrt 100 - 8(11)

over 4

-10(plus or minus) sqrt 100-88

over 4

-10(plus or minus) sqrt 12

over 4

FINAL ANSWER:

-10(plus or minus) 2 sqrt 3

over 4

can this be simplified any more? or is the final answer even correct? pls help!!

Divide the 2a out, so

x= -2.5 +- .5* sqrt3

I'm a little confused. could you show me where exactly I went wrong? thanks! :)

When you used the formula

x = [-b +/- sqrt (b^2-4ac)]/2a, you forgot to divided by 2a, which is 4.

**Answer this Question**

**Related Questions**

math - I am working on quadratic equations and I have worked a problem down to 3...

math - Here's my question: Determine if each system has one, two, or no ...

math - Write an explicit formula for the sequence one-half, three-sevenths, one-...

precal - when i do the quadratic equation i get -17 plus or minus the square ...

algebra - Graphthe equation y plus 6 equals 1/8(x-2 1/8x - 2/8 add 2/8 to 6, so ...

Pre-algebra - Solve. 29x – 2(9x – 0.455) = 10x + 0.525 Give us you thinking on ...

math - Simplify completely quantity 6 x squared minus 54 plus 84 over quantity 8...

math - Simplify 1 over 2 of 1 over 4 devide 1 over 3 all over 1 over 6 minus 3 ...

math help please - a +p - x+y - --- b z ok its a over b plus p minus x plus y ...

algebra - x over y minus y over x divided by 1 over y plus 1 over x.