Question

(3x^4-x^3+x-4)+(x^5+7x^3-3x^2-5)+(-5x^4+6x^2-x)+(2x^5+2x^4-5x^3-8x^2+x-7)
Help solve and show work please.

Answer 1

.-.

Answer 2

\[\large 3x^4-x^3+x-4 + x^5+7x^3-3x^2-5 + -5x^4+6x^2-x \]\[\large\rm 2x^5+2x^4-5x^3-8x^2+x-7 \]
there are plus sign outside the parentheses so good to go
just remove all parentheses
and then combine like terms
add the coefficient of same variables(&same exponent )
here are some example 2x+3x = (2+3)x=5x