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Mathematics 18 Online
OpenStudy (anonymous):

How would you factor u^2 - 3uv - 54v^2?

OpenStudy (anonymous):

(u-9) (u+6) = 0

OpenStudy (anonymous):

u = 9 or u = -6

OpenStudy (anonymous):

equal zero?

OpenStudy (anonymous):

these answers are not correct

OpenStudy (anonymous):

answer is \[(u-9 v) (u+6 v)\]

OpenStudy (anonymous):

Yes, that is it. How did you do that?

OpenStudy (anonymous):

factor. forget the v for a second

OpenStudy (anonymous):

Common factors are 6 and 9 from the 54

OpenStudy (anonymous):

u=-6v or u=9v

OpenStudy (anonymous):

two numbers whose product is -54 and whose sum is -3 the numbers 9 and 3 suggest themselves right away

OpenStudy (anonymous):

@rohita what are you talking about???

OpenStudy (anonymous):

i meant ans

OpenStudy (anonymous):

this is not an equation. there is no equal sign here. just factor. that is not an answer

OpenStudy (anonymous):

Why does u=-6v or u=9v?

OpenStudy (anonymous):

it doesn't

OpenStudy (anonymous):

ignore that answer, and ignore first answer. answer is \[(u-9 v) (u+6 v)\]

OpenStudy (anonymous):

you have to be very careful when using this site. not every answer is correct

OpenStudy (anonymous):

ya right!!!!

OpenStudy (anonymous):

u^2-9uv+6uv-54v^2 u(u-9v)+6v(u-9v) (u+6v)(u-9v)

OpenStudy (anonymous):

ur c value is 54 n factors of 54 is 9 n 6....

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