Question

x^4+3x^2-10 by x^2+5

(By factorisation)

Answer 1

$\frac{x {}^{4} + 3x {}^{2} + - 10 }{x {}^{2} + 5 } \\ \frac{x {}^{4} + (5 - 2)x {}^{2} - 10 }{x {}^{2} + 5 } \\ \\ \frac{(x {}^{2} +5)(x {}^{2} - 2) }{x {}^{2} + 5 } \\ x { }^{2} - 2 \: is \: the \: answer$