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Mathematics 12 Online
OpenStudy (anonymous):

i have to subtract this polynomials (6x^2+8x-4)-(8x^2-2x-35)

OpenStudy (johnweldon1993):

well you know that you cannot combine ...say...an x^2...with any other number other than another x^2 right? same for "x's" and just normal numbers.... in your case you can combine 6x² - 8x²....what is 6 - 8? you can combine 8x and -2x....what is 8 - (-2)? and you can combine -4 and -35...what is -4 - (-35)?

OpenStudy (anonymous):

so whats the answer

OpenStudy (johnweldon1993):

you'll receive the answer when you do the steps... you can combine 6x² - 8x².... what is 6 - 8?

OpenStudy (anonymous):

so would it be -2x^2+10x+31

OpenStudy (johnweldon1993):

correct

OpenStudy (anonymous):

can you help me on this last one but this time i have to multiply polynomials

OpenStudy (johnweldon1993):

sure...and if I can't someone else will

OpenStudy (anonymous):

4x^2y^2-3xy+5x^2y^5

OpenStudy (johnweldon1993):

....where's the multiplication?

OpenStudy (anonymous):

that what confuses me it say to multiply

OpenStudy (anonymous):

4x^2y^2-3xy+5x^2y^5

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