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Mathematics 7 Online
OpenStudy (anonymous):

find the solution set. x^2-22x+121=0

OpenStudy (anonymous):

@Luis_Rivera

OpenStudy (skullpatrol):

Any ideas?

OpenStudy (anonymous):

nope i dont understand these, not very good at math

OpenStudy (anonymous):

help?

OpenStudy (luigi0210):

Do you know any factors that go into 121?

OpenStudy (anonymous):

11

OpenStudy (luigi0210):

Right, now do you know what adds up to -22 and a positive 121?

OpenStudy (anonymous):

um!

OpenStudy (anonymous):

-11,11

OpenStudy (anonymous):

nevermind i did that wrong

OpenStudy (anonymous):

-11 and 60.5

OpenStudy (anonymous):

????

OpenStudy (anonymous):

solving for x i get:\[x=11\]

OpenStudy (anonymous):

i need two numbers

OpenStudy (anonymous):

its actually the same number twice, so: \[x=11 \] and \[x=11\]

OpenStudy (luigi0210):

Sorry, and yes the factors are 11, (x-11)(x-11)

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