Question

i need a little help on this one plz..... (8x(squared)+x-1)+(-2x(cubed)+3x-15)...... i couldn't figure out how to put the exponent up there so i just put squared and cubed..... if that makes sense<3

Answer 1

\[(8x ^{2}+x-1) + (-2x ^{3}+3x-15)\]
adding like terms ?

Answer 2

yes that's the equation

Answer 3

well there is only one x^3 term so leave it alone
there is only one x^2 term so leave it alone
there are 2 x terms-> x + 3x
x+3x = 4x, because 1+3=4
there are 2 constants --> -1+ -15
-1 + (-15) = -16

= \[-2x ^{3}+8x ^{2}+4x -16\]

Answer 4

do you need to factor this

Answer 5

ohhhhhhh..... i get it now thanx a SUPER lot!