Asked by kayla
x^2-9x-4=6
solve by completing the square
show steps plz :D
Add 4 to both sides. What is 1/2 of -9? Then square that, and add it to both sides.
Now, on the left, you have a perfect square.. (x-9/2). Take the square root of each side. Remember the right side will be +-.
solve by completing the square
show steps plz :D
Add 4 to both sides. What is 1/2 of -9? Then square that, and add it to both sides.
Now, on the left, you have a perfect square.. (x-9/2). Take the square root of each side. Remember the right side will be +-.
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