<p>If n>0, n is a non-negative integer, and 2x^(n+1) + x^(n+2) = x^ (n=3), what must x^3 equal?</p>
<p>a. 2+ 2x+ x^2
b. 2x + x^2
c. 2 + x^2
d. 2+x
e. 3x</p>
<p>there’s a typo in ur question it should be
if x>0 and n is a nonnegative integer</p>
<p>2x^n+1 + x^n+2 = x^n+3</p>
<p>which of the following must equal x^3?</p>
<p>A) 2+2x+x^2
B) 2x+x^2
C) 2+x^2
D) 2+x
E) 3x</p>
<p>divide the equation above by x^n</p>
<p>2x^n/x^n +x^n+2/x^n = x^n+3/x^n
2x+x^2 = x^3</p>
<p>thanks…</p>