Question

Simplify:



5x3 – 2x2 + x + 4x3









A.

8x3








B.

9x6– 2x2+ x








C.

9x3– 2x2+ x








D.

5x3– 2x2+ x + 4x3 (the expression cannot be simplified)

Answer 1

i think its D....

Answer 2

the expression has 5 x^3 plus 4 x^3
(5 of x cubed and 4 more of x cubed)
you can add them. how many x^3 do you have ?

Answer 3

9x^3? @phi

Answer 4

yes. and the rest of the expression stays the same
\[ 5x^3 – 2x^2 + x + 4x^3 = 9x^3 -2x^2 +x \]

Answer 5

so D @phi

Answer 6

choice D says you can't simplify. but you just did. try again.

Answer 7

idk :( @phi

Answer 8

I posted the answer up above.