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Mathematics 20 Online
OpenStudy (anonymous):

I need someone to help me please!

OpenStudy (anonymous):

about what? how to post question ? :P

OpenStudy (anonymous):

um no.. I'll post it. hold on (:

OpenStudy (anonymous):

okay

OpenStudy (anonymous):

How can this product be simplified? \[5x ^{2}(2x-3)\]

OpenStudy (anonymous):

here are the multiple choices they gave me.. \[5x ^{2} + 2x - 3 \] \[10x ^{3} - 15x ^{2}\] \[-5x ^{2}\] \[7x ^{3}- 15x ^{2}\]

OpenStudy (anonymous):

oh you just have to multiply the bracket by \[5x^2\]

OpenStudy (anonymous):

here \[5x^2(2x-3)=5x^2*2x-3*5x^2=10x ^{2+1}-15x^2 = 10x^3-15x^2\]

OpenStudy (anonymous):

Do I solve this whole thing?

OpenStudy (anonymous):

haha that's a lot of math..

OpenStudy (anonymous):

its not O.o its basic of basic

OpenStudy (anonymous):

what does that mean?? I'm not gooa at algebra...:( I don't understand the rules about any of this :( are there any rules?

OpenStudy (anonymous):

good*

OpenStudy (anonymous):

LOL no rules let me tell you when you multiply \[x^2*x =x^3 \] or when you multiply \[x^4*x^4 =x^8\] you are just doing addition of their power \[x^4+x^4=x ^{4+4}=x^8\]

OpenStudy (anonymous):

so work that out?

OpenStudy (anonymous):

pardon me?

OpenStudy (anonymous):

Do I work out the problem?

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