Grade 9Algebra
ax^2-x+a=0, and x1 and x2 are roots of this expression and |x1-x2|
ax^2-x+a=0, and x1 and x2 are roots of this expression and |x1-x2|
1 Answer
Vikas TU
|x1-x2| can be written as in therms of the sum of roots and the products of the roots as:
=> |x1-x2| = root((x1+x2)^2 -4x1x2)) => root((1/a)^2 – 4*1) => root(1/a^2 – 4)
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