Tuesday

September 23, 2014

September 23, 2014

Posted by **carmen** on Friday, March 15, 2013 at 10:46pm.

2m^2-m-15=0

using the quadratic formula

2y^2-3y-6=0

- math -
**Reiny**, Friday, March 15, 2013 at 10:55pm2m^2 - m = 15

m^2- (1/2)m = 15/2

m^2 - (1/2)m + 1/16 = 15/2 + 1/16

(m - 1/4)^2 = 121/16

m - 1/4= ± 11/4

m = 1/4 ± 11/4

m = 3 or m = -5/2

the second one is simply subbing into the formula and number-crunching.

let me know what you got.

**Answer this Question**

**Related Questions**

Algebra Quadratic Equations - I am trying to define the different appraoches to ...

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 ...

algebra - Quadratic equations can be solved by graphing,using the quadratic ...

math 117 - Quadratic equations may be solved by graphing, using the quadratic ...

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

math - 1. solve by using the quadratic formula. 5x^2+x=3 2. solve by completing ...

ALGEBRA - Quadratic equations can be solved by graphing, using the quadratic ...

ALGEBRA--MAT 117 - Quadratic equations can be solved by graphing, using the ...

math,correction - Is this correct now. Problem #1 solve by completing the square...