Question

(x^4 + 8x^2 + 16 ) : (x^2+4)

Answer 1

Ta có:

\(\left(x^4+8x^2+16\right):\left(x^2+4\right)\)

\(=\left[\left(x^2\right)^2+2x^2.4+4^2\right]:\left(x^2+4\right)\)

\(=\left(x^2+4\right)^2:\left(x^2+4\right)\)

\(=x^2+4\)

Answer 2

\(\left(x^4+8x^2+16\right):\left(x^2+4\right)\)

\(=\left(x^2+4\right)^2:\left(x^2+4\right)\)

\(=x^2+4\)

Answer 3

\(\dfrac{x^4+8x^2+16}{x^2+4}=x^2+4\)