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How to factor it and by what

How to factor it and by what
asked 143k views
3 votes
How to factor it and by what

How to factor it and by what-example-1
asked
User Pigol
by
8.4k points

1 Answer

2 votes
x^2 -5x -20=0
(x - 5/2)^2 -20 -25/4=0
(x-5/2)^2-105/4=0
(x -5/2 -(105)^1/2)(x -5/2 +(105)^1/2)=0
factors are (x -5/2 -(105)^1/2) and
(x -5/2 -(105)^1/2)


answered
User Oliver Friedrich
by
8.1k points
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