Math, asked by obaiah6866, 7 months ago

Find the product using a suitable identity.

(m + 3)(m -3)(m2

+ 9)​

Answers

Answered by hemendrakumar125019
4

Answer:

correct answer is m^4-81

Step-by-step explanation:

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Answered by Anonymous
7

 \huge \underline{ \underline{ \bf  \purple{Solution :}}}

\longrightarrow \sf(m + 3)(m - 3)( {m}^{2}  + 9) \\  \\\longrightarrow \sf ( {m}^{2}  -  {3}^{2})( {m}^{2}  + 9) \\  \\\longrightarrow \sf ( {m}^{2}  - 9)( {m}^{2}  + 9) \\  \\ \longrightarrow \sf  {( {m}^{2}) }^{2} -  {9}^{2} \\  \\  \longrightarrow  \boxed{\sf {m}^{4}    - 81}

Identity Used :-

  \implies\bf(a + b)(a - b) =  {a}^{2}  -  {b}^{2}

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