Hence zeros of function are
,x=-9, x=-8
Value of x that makes function value 0.
[tex]x^{2[/tex] +17x+72=0
[tex]x^{2}[/tex]+ 8x+9x+72=0
x(x+8)+9(x+8)=0
(x+9)(x+8)=0
x=-9,-8
Hence ,x=-9, x=-8
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