Question

Which is a factor of 5x2– 15x – 20 ?
Answer
x + 4
x + 3
x – 5
x + 1

Answer 1

IS IT THE THIRD ONE

Answer 2

if we divide through by we get: x^2-3x-4, the we can factor this as: (x+1)(x-4), thus one of its factors would be indeed x+1

Answer 3

I agree.