Sunday

January 25, 2015

January 25, 2015

Posted by **Mary** on Wednesday, April 17, 2013 at 9:57pm.

1) w^2 - 5w = 11/4

2) z^2 + 11z = -21/4

3) k^2 - 8k - 7 = 0

4) v^2 - 7v + 1 = 0

- Algebra -
**Reiny**, Wednesday, April 17, 2013 at 11:08pmall 4 are of the easy type with the coefficient of the square terms as 1

remember to take half of the middle term, then square it, and add it to both sides

w^2 - 5w + 25/4 = 11/4 + 25/4

(w-5/2)^2 = 36/4

w-5/2 = ± 6/2 = ± 3

w = 5/2 ± 3

= 11/2 or -1/2

try the others in the same way

**Answer this Question**

**Related Questions**

algebra help - My class is doing a unit on the "completing the square method" ...

Algebra 2 - Completing the square method allows you to solve any quadratic ...

Algebra Quadratic Equations - What are the pros and cons of completing the ...

Algebra - I have several of these problems and am having trouble getting the ...

algebra - solve by the substitution method: 8m+n=47 m-5n=52 thank you having ...

maths - Consider the equation x(square) + 4px + 2q = 0 where p and q are real ...

I need help with algebra ASAP! - I'm in Algebra 1 this year and I really need ...

Math - I need help with these three problems. They are on a Study Guide and I ...

math - I need help with these three problems. They are on a Study Guide and I ...

Math - I need help with these three problems. They are on a Study Guide and I ...