Verified answer

No real factors.

x² - 10x + 4

x² - 10x = -4

x² - 2*5*x+25=19

(x-5)^2 = 19

x= 9.58

and x=0.417

the disciminant is b²-4ac = 100 - 4(1)(4) = 84 which is not a perfect square.

therefore, the expression has no rational factors

Does not factorise.

factorise means put it back into the brackets...

i think it would be x(x - 10)+4 but that looks as if it could go further back into the brackets but i dunno so i help that helps... x

you can not factor this problem, so there for it is prime.

(x-5+sqrt(21))(x-5-sqrt(21))