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OpenStudy (anonymous):
(x+4)^2
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OpenStudy (anonymous):
expand it
OpenStudy (anonymous):
it will be\[x² + 8x + 16\]
OpenStudy (anonymous):
now use the quadratic formula to solve
OpenStudy (anonymous):
\[ (x+4)^2=0\implies x=-4 \] You do not need the quadratic formula here
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