Choose the correct sum of the polynomials (3x3 − 5x − 8) + (5x3 + 7x + 3).
8x^3 + 2x + 5
2x^3 − 12x − 11
2x^3 + 12x − 5
8x^3 + 2x − 5

Question

Choose the correct sum of the polynomials (3x3 − 5x − 8) + (5x3 + 7x + 3).
8x^3 + 2x + 5
2x^3 − 12x − 11
2x^3 + 12x − 5
8x^3 + 2x − 5

anonymous · Answer

8x^3+2x-5

zehanz · Answer

You can add like terms, so any terms with x³ can be added, as can the terms with x.

zehanz · Answer

@phani09: please do not give a direct answer...

anonymous · Answer

@ZeHanz is he right ? if he is can u explain ?

anonymous · Answer

hey u just asked to choose the correct answer....and thats why i did it...

anonymous · Answer

all i would want is the answer, and then the explaination to back it up. anyone can jus pick an answer coice

anonymous · Answer

*choice

zehanz · Answer

OK, so you go and add the terms with x³:   3x³ + 5x³= ...
Now add the terms with x:   -5x + 7x = ...
Now add the constant terms:  -8 + 3 = ...

Then put everything on one line

zehanz · Answer

(I got: 8x³+2x-5)

anonymous · Answer

thank u !

zehanz · Answer

Welcome!