Question

facotr the qundratic function x^2-20x+100


a,(x+10)^2
b,(x-10)^2
c,(x+10)(x-2)
d,(x-10)(x+2)

Answer 1

x^2-20x+100
(x-10) (x-10)

Answer 2

worst case you can FOIL all the answers. Only the first two give you 100

Answer 3

i think b

Answer 4

\[\checkmark\]

Answer 5

thanks ya all

Answer 6

welcome :)

Answer 7

x^2-20x+100
x^2 - 10x - 10x + 10*10
x(x-10) - 10(x - 10)
(x - 10)(x - 10)
(x - 10)^2

Answer 8

x^2-20x+100
think of -10(-10)=100 and-10 + -10 =-20

Answer 9

so try
=(x-10)(x-10)
=(x-10)^2