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Mathematics 17 Online
OpenStudy (anonymous):

Factor: x2 + 20x + 100

OpenStudy (nincompoop):

think of two numbers so that when you add them gives you 20 and when you multiply them gives you 100

OpenStudy (anonymous):

10

OpenStudy (anonymous):

oh, no, 5

OpenStudy (anonymous):

i mean 10 and 10!

OpenStudy (nincompoop):

okay then use it

OpenStudy (nincompoop):

try distribution and see if you will get x^2+20x+100

OpenStudy (nurali):

x2 + 20x + 100 Your equation for discriminant is b^2-4ac a=1, b=20 and c=100 (20)^2-4(1)(100) 400-400 0 Since the discriminant is 0. This means that the equation has one real root.

OpenStudy (nincompoop):

you have the right answer, @Nurali but for the wrong question

OpenStudy (anonymous):

to simplify nincompoop's answer, it's really (x+10)^2

OpenStudy (nurali):

ok @nincompoop

OpenStudy (anonymous):

wait, @nincompoop i don't get it... is it (x+10) (x+10)???

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