Now that you have x2 - 8x + 16 = 9+ 16, apply the
square root property to the equation.
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Answer:
a) [tex](x-4)^2=25[/tex]
Step-by-step explanation:
[tex](x^2-8x+16)=9+16\\ (x)^2-2*x*4+(4)^2=25\\ (x-4)^2=25\\x-4=5\\x=5+4\\x=9[/tex]