Wednesday

August 20, 2014

August 20, 2014

Posted by **Hally** on Tuesday, January 15, 2013 at 10:00pm.

x2 + 2x - 6 = 0

A. Square roots; there is no x-term.

B. Quadratic formula, graphing; the equation cannot be factored easily since the numbers are large.

C. Factoring; the equation is easily factored.

D. Quadratic formula, completing the square or graphing; the coefficient of x2-term is 1, but the equation cannot be factored. <<<------

2)What are the solutions of the equation?

c^2 - 10c = 0

A. 1, – squareroot10 <<<----

B. 0, –10

C. 0, sqrt10

D. 0, 10

3)Use the discriminant to determine the number of real-number solutions for the equation:

8x2 + 8x + 2 = 0

A. one solution <<<---

B. two solutions

C. no solutions

D. infinitely many solutions

4)What are the solutions of the equation: z2 - 12z + 36 = 0?

A. -6, 6 <<----

B. 6, 6

C. 6, -6

D. -6, -6

am i right? if not, please help me out. :D

thank u!

- Algebra II -
**PsyDAG**, Wednesday, January 16, 2013 at 12:32pm1. I would choose B.

2. c^2 - 10c = c(c-10) = 0

Now what do you think?

4. z^2 - 12z + 36 = (z-6)(z-6) = 0

Now what do you think?

3. Since it seems like you are just guessing, I did not bother to answer.

**Related Questions**

AlgebraB-2 - A model rocket is launched from a roof into a large field. The path...

Algebra2 - Find the polynomials roots to each of the following problems: #1) x^2...

Math - Algebra - A. Solve the following quadratic equations. Make sure to show ...

algebra - 1)Solve by factoring:5x^2=4-19x answer=-4,1/5 2)Which quadratic ...

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 ...

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

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

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

Algebra - How do you solve an equation with a fraction like x^(2/3) +13=17. I ...