Tuesday

September 2, 2014

September 2, 2014

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**

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

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

Algebra - I was given this answers to a problems I solved but I do not ...

Algebra - I was given this answers to a problems I solved but I do not ...

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

Algebra - Solve x^2-10x+22=0 by using the quadratic formula. After I substituted...

Algebra - Solve the equation using the Quadratic Formula 5xsquared+13x-6=0 i ...

Math(Please check my work.) - (2x-3)(x^2+5x-3)=2x+10x^2-15x+9 *Is this correct...

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

Algebra - Quadratic Formula Using +/- for plus or minus Using \/ radical sign...