Question

x²-18x+ 81=
please do it fast ​

Answer 1

Answer:

21 answer

Step-by-step explanation:

⟼x²-18x+ 81=?

⟼2x-18x-81= x

⟼2x+x+18-81= x

⟼3x+18-81

⟼3x⇛81-18

⟼3x=63

⟼x ⇛63/3

⟼x ⇛21 answer

hope it's helps you