Posted by **Rebecca** on Tuesday, May 31, 2011 at 11:37am.

Solve using the quadratic formula.

a) x^2 - 7x + 12 = 0

a = 1 b = -7

x = -b +/- the sr of b^2 - 4ac /2a

7 +/- the sr of -7^2 - 4(1)(12) /2a

7 +/- the sr of -49 - 48 /2a

7 +/- the sr of -97 /2a

7 +/- 97 /2a

-90/2=-45

-104/2= 54

The roots are -45 and 54.

did i solve this correctly?

## Answer this Question

## Related Questions

- Math - Use the quadratic formula to solve each of the following quadratic ...
- Algebra - 1. Parent Quadratic Equation 2. Coordinate of the vertex 3. quadratic ...
- math - 15t^2+7t=2 The quadratic formula tells you that the solutions are: t = [-...
- Algebra - Quadratic Formula Using +/- for plus or minus Using \/ radical sign...
- math,algebra - can someone help me out factor out this 0=16t^2-122t+180 i have ...
- algebra - using quadratic formula 3y2=6+7y 3 y^2 -7y - 6 = 0 When using the ...
- math - use the quadratic formula to solve this equation. 4x^2-8x+3=5 use the ...
- pre cal - using formula v=-b/2a, 4ac-b^2/4a graph the quadratic function f(x)=x^...
- College Math II - Solve by using the quadratic formula. x^2 + 6x + 6 = 0 I am ...
- Math - Solve for the zeros of the function using the quadratic formula. 3x^2=-4x...

More Related Questions