SOLUTION: Do you know the pattern or formula of this equation? (x-1)(x-2)=0 Thanks!:)

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Question 683841: Do you know the pattern or formula of this equation?
(x-1)(x-2)=0
Thanks!:)
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
What will make this equation true?
+%28+x+-+1+%29%2A%28+x+-+2+%29+=+0+
If I say +x+=+1+, then
+%28+1+-+1+%29%2A%28+1+-+2+%29+=+0+
+0%2A%28-1%29+=+0+
So, +x+=+1+ makes it true
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If I say +x+=+2+, then
+%282+-+1+%29%2A%28+2+-+2+%29+=+0+
+1%2A0+=+0+
So, +x+=+2+ also makes it true
----------------------------
Theses are called the "roots" of the equation
If I now multiply it out:
+x%5E2+-+3x+%2B+2+=+0+ and plot it, you will see
the roots as the crossings of the x-axis
+graph%28+400%2C+400%2C+-5%2C+5%2C+-2%2C+6%2C+x%5E2+-+3x+%2B+2+%29+