Question

find the value of x Solve by completing square x^2 - 4x - 45 =0

Answer 1

Answer:

X=3 or X=9

Step-by-step explanation:

x^2-4x-45=0

x^2-(9+5)x-45=0

=x^2-9x+5x-45

=x^2-9=0 or 5x-45

=x^2=9 or 5×=45

x=3 or x=45/5=9.