Posted by Mary on Wednesday, April 17, 2013 at 9:57pm.
I have four problems I'm having trouble with. I need to solve the equations by completing the square.
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 11:08pm
all 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
(w5/2)^2 = 36/4
w5/2 = ± 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  Can someone help me with these two equations, I need to solve them by ...
 Algebra  I have several of these problems and am having trouble getting the ...
 algebra  solve by the substitution method: 8m+n=47 m5n=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 ...
More Related Questions