OpenStudy (anonymous):

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

7 years ago
OpenStudy (anonymous):

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

7 years ago
OpenStudy (anonymous):

thank you!

7 years ago
OpenStudy (anonymous):

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

7 years ago
OpenStudy (anonymous):

But be careful if you have a subtract instead of add

7 years ago
OpenStudy (anonymous):

okay

7 years ago
OpenStudy (anonymous):

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

7 years ago
OpenStudy (anonymous):

$2x^{2}-3x+4-x^{2}-4x+1$ $2x^{2}-x^{2}-3x-4x+4+1$ $x^{2}-7x+5$

7 years ago
OpenStudy (anonymous):

oh okay i get it thanks :)

7 years ago
OpenStudy (anonymous):

can $(-4x ^{2})(2x)$ be simplified?

7 years ago
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 :)

7 years ago
OpenStudy (anonymous):

It could be written as $-8x^{3}$ which is simpler

7 years ago