SOLUTION: Solve the equation by completing the square: p^2+3p-9=0

Question 269463: Solve the equation by completing the square:
p^2+3p-9=0
Answer by drk(1908) (Show Source): You can put this solution on YOUR website!
To complete the square rewrite the equation as
(i)
step 1 - take 1/2 of the middle term and square it to get
(ii)
notice the blanks were used to put the 1/2 term squared.
step 2 - rewrite the left side as a binomial squared and simplify the right side to get
(iii)
step 3 - take a square root to get
(iv)
step 4 - subtract 3/2 to get
(v)
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