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