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प्रश्न
Add the following:
\[m^2 - 4m + 5\]
\[ - 2 m^2 + 6m - 6\]
- m^2 - 2m - 7
_______________
उत्तर
\[m^2 - 4m + 5\]
\[ - 2 m^2 + 6m - 6\]
`- m2 - 2m - 7`
\[ - 2 m^2 + 0 \times m - 8\]
\[ = - 2 m^2 + 0 - 8 = - 2 m^2 - 8\]
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