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Mathematics 16 Online
OpenStudy (music0203):

multiply. (4x+3)(4x-3)

OpenStudy (kidrah69):

This one is just like that last one :) 4x times 4x = ?

OpenStudy (music0203):

16n?

OpenStudy (music0203):

x!

OpenStudy (kidrah69):

16x ^2 remeber we have 2 x's :)

OpenStudy (music0203):

got it

OpenStudy (kidrah69):

Next 4x times -3

OpenStudy (music0203):

-12x?

OpenStudy (kidrah69):

yep! what is 3 times 4x

OpenStudy (music0203):

7x

OpenStudy (music0203):

12

OpenStudy (music0203):

12x sorry

OpenStudy (kidrah69):

12x is right :) -3 x 3 = ?

OpenStudy (music0203):

-9

OpenStudy (kidrah69):

16x^2 - 12x +12x - 9 combine like terms

OpenStudy (music0203):

to combine like terms, do you add all the number that come before an x?

OpenStudy (kidrah69):

-12+12 = ?

OpenStudy (kidrah69):

we combine those since they both have x's

OpenStudy (kidrah69):

ONLY x's NOT x^2

OpenStudy (music0203):

okay so thats 0. which means- 16x^2 - x - 9??

OpenStudy (kidrah69):

16x^2-9 <---answer we do not count the 0 both numbers cancel out so 0 is gone

OpenStudy (music0203):

thank you so much!

OpenStudy (kidrah69):

No problem :)

OpenStudy (kidrah69):

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