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OpenStudy (anonymous):

how do you simplify (4x-3)+(5x+4) ?

OpenStudy (anonymous):

4x+5x-3+4 9x+1

OpenStudy (anonymous):

thank you!

OpenStudy (anonymous):

(4x-3)+(5x+4) = 9x + 1

OpenStudy (anonymous):

But be careful if you have a subtract instead of add

OpenStudy (anonymous):

okay

OpenStudy (anonymous):

so what about \[(2x ^{2}-3x+4)-(x ^{2}+4x-1)\] ?

OpenStudy (anonymous):

\[2x^{2}-3x+4-x^{2}-4x+1\] \[2x^{2}-x^{2}-3x-4x+4+1\] \[x^{2}-7x+5\]

OpenStudy (anonymous):

oh okay i get it thanks :)

OpenStudy (anonymous):

can \[(-4x ^{2})(2x)\] be simplified?

OpenStudy (anonymous):

No problem just always remember to get rid of the brackets first Get rid isn't the right terminology but you know what I mean Eg time sing by minus one to get rid of the negative sign Then gather like terms then rewrite it :)

OpenStudy (anonymous):

It could be written as \[-8x^{3}\] which is simpler

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