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Mathematics 21 Online
OpenStudy (anonymous):

Multiply. (3x – 5)2

jimthompson5910 (jim_thompson5910):

This is \[\Large (3x-5)^2\] right?

OpenStudy (anonymous):

yes

jimthompson5910 (jim_thompson5910):

I'll do a bit of it to get you going \[\Large (3x-5)^2\] \[\Large (3x-5)(3x-5)\] \[\Large 3x(3x-5)-5(3x-5)\] and I'll let you finish it off

OpenStudy (anonymous):

A.9x2 – 30x + 25 B.6x2 – 10 C.9x2 – 25 D.9x2 – 15x + 25

OpenStudy (anonymous):

= (3x-5)(3x-5) = 3x*3x-3x*5-5*3x-5*-5 = 9x^2-30x+25

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