Answer:
Explanation:
(x+6)(x+3)=9+(x+1)
= x^2+3x+6x+18
=x^2+9x+18=9(x+1)
=x^2+9x+18=9x+9
tbs = to both sides
(-9x tbs)= 9x-9x=0 so x^2+18=9
(-18tbs) = x^2=9-18 becomes x^2=-9
x=
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