Question

factorise x^-36x+324​

Answer 1

Answer:

x ² + 36 x + 324

take down the factors of 324 such that multiplication be 324 and addition of that two numbers be 36

so that two numbers are 18 x and 18x

because multiplication of 18 and 18 = 324

and addition of 18x + 18x = 36x

x² + 18x + 18x + 324

= x( x + 18 ) + 18 ( x+ 18 )

take commons = (x + 18) (x + 18 )

hope it help you

Answer 2

X^2-36x+324

(X^2-18x)-(18x+324)

x(x-18)-18(x-18)

(x-18) (x-18)=0

X=18. X=18