Question

I have an equation to simplify down that is stumping me
(X+3)(xto the 4th power minus 4xtothe 2nd power +5)

Answer 1

Is this what your asking: (x+3)(x^4 - x^2 + 5)

If you are then:
(x+3)(x^4 - x^2 + 5)
= (x+3)(x^2 + 5)
= x^3 + 3x^2 - 5x - 15

Looks kinda confusing but yh... Anyway, hope it helped :)