There is a question that I can never figure out why it is wrong. Here is the question:
16-36=25-45
= -20
16-36+20.25=25-45+20.25
add 20.25 to both sides
FOIL / Complete the square...
(4-(9/2))^2 = (5-(9/2))^2
Sqrt it.
4-(9/2) = 5-(9/2)
add both sides by 9/2
4=5
why is it wrong?
This question held me prisoner for 5 hours and I just lost my last bit of hand-eye coordination.
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Engineer223
