Question

One factor of x4 + x?-20 is x +5 the other factor is
a) X-4 b)
et x²-4
x² - 5​

Answer 1

Answer:

b(

Step-by-step explanation:

b)x^2-4

let's multiply

(x^2-4)(x^2+5)

it gives

x^4+5x^2-20

so it is true