Question

if one of the factor of x²+x-20 is (x+5). find the other

Answer 1

Answer:

x(x+5)-4(x+5)

=(x+5)(x-4)

other is(x-4)

Answer 2

Answer:

(x - 4)

Step-by-step explanation:

Let p(x) = x² + x - 20

Now,

(x + 5) is a factor of p(x)

by long division method (shown in the above pic)

(x - 4) is another factor of p(x)

hope this will help you