Wednesday

October 1, 2014

October 1, 2014

Posted by **kay** on Wednesday, January 18, 2012 at 5:45pm.

- algebra 2 -
**Reiny**, Wednesday, January 18, 2012 at 5:55pmfor 3x^2 + 2x - 7 = 0

discr = 4 -4(3)(-7) = +88

so you have real roots, both irrational

- algebra 2 -
**Damon**, Wednesday, January 18, 2012 at 5:56pmb^2-4ac

2^2 -4(3)(-7)

4 + 84 = 88 = 8*11

It tells you that there are two real roots because the discriminant is positive and that the roots will not be whole numbers because there will be a square root of 11 involved.

**Answer this Question**

**Related Questions**

algebra 2 - 1) In the general second-degree equation Ax^2 + Bxy + Cy^2 + Dx + Ey...

algebra - What would be the discriminant for this equation: x^2-2x+12=0 How many...

math 2 - Julie is solving the equation 3x2 + 5x + 15 = 0 and notices that the ...

Algebra - Find the discriminant and solutions for the following equations. #1) ...

Precalculus(URGENT) - compute the discriminant of the equation.What does the ...

Trigonometry - Help trig question involving discriminant? a)Find the value of ...

Algebra 2 - Evaluate the discriminant of each equation. Tell how many solutions ...

algebra - Can someone please explain What polynomial has a graph that passes ...

Algebra2 - Complete parts a – c for each quadratic function. a. Find the y-...

algebra - For the following equation, state the value of the discriminant and ...