pls give me the answer of questions 25 & 26
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x=-6
f (-6)=6 (-6)^3+35 (-6)^2-7 (-6)-6
=-1296+1260+42-6=36-6+42=0.
x=-9
f (-9)=2 (-9)^3+5 (-9)^2-124 (-9)-63
=-1458+405+1116-63=-1521+1521=0.
f (-6)=6 (-6)^3+35 (-6)^2-7 (-6)-6
=-1296+1260+42-6=36-6+42=0.
x=-9
f (-9)=2 (-9)^3+5 (-9)^2-124 (-9)-63
=-1458+405+1116-63=-1521+1521=0.
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