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Mathematics 7 Online
OpenStudy (anonymous):

factor completely: 45x2 + 57x + 18

OpenStudy (anonymous):

what number is the HCF (Highest Common Factor)

OpenStudy (anonymous):

in this quadratic.?

OpenStudy (anonymous):

3?

OpenStudy (anonymous):

9

OpenStudy (anonymous):

not a quadratic

OpenStudy (anonymous):

So you can factorise the 9 out of the quadratic first. \[9(?x^2+?x+?)\]

OpenStudy (anonymous):

Fill in those question marks.

OpenStudy (anonymous):

k one sec thanks

OpenStudy (anonymous):

I also have trouble with factoring can u help me?? @Azteck

OpenStudy (anonymous):

And it's meant to be -18 I think.

OpenStudy (anonymous):

I think you wrote the wrong expression.

OpenStudy (anonymous):

9 doesn't work, it doesn't go into 57.

OpenStudy (anonymous):

9 doesnt

OpenStudy (anonymous):

\[3(15x ^{2}+19x+18)\]

OpenStudy (anonymous):

yes! so it was 3

OpenStudy (anonymous):

Oh god. @julianahe why did you say 9?

OpenStudy (anonymous):

thanks @hsrikako

OpenStudy (anonymous):

My mistake.

OpenStudy (anonymous):

I thought it was i was not sure buit you seem like an expert so i trusted u lol

OpenStudy (anonymous):

And it is quadratic. You need to use the quadratic formula for that.

OpenStudy (anonymous):

Sorry @xxxo about that.

OpenStudy (anonymous):

all good thanks

OpenStudy (anonymous):

And you don't need to use the quadratic formula.

OpenStudy (anonymous):

@hsrikako do you tips on factorizing I have troubleee

OpenStudy (anonymous):

You are welcome to PM me.

OpenStudy (anonymous):

\[3(3x-2)(5x-3)\]

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