Question

Which of the following is a factor of x2- 21x + 110?


A) x + 11
B) x - 10
C) x - 5
D) None of the above

Answer 1

x-10

Answer 2

see how..

Answer 3

Which is a factor of 2x2+ 8x - 90 ?


A) x + 2
B) x - 15
C) x + 9
D) x - 4

Answer 4

x2-21x+110=x2-11x-10x+110
=> =x(x-11)-10(x-11)
=> =(x-11)(x-10)

so x-10 is a fector..