Question

${a}^{7} - {ab}^{6}$

Answer 1

© a^7 - ab^6

=>a.a^6 - a b^6

=>a ( a^6 - b^6 )

=>a{ (a^3)^2 - ( b^3)^2 }

=>a (a^3 - b^3 ) (a^3 + b ^3 )

=>a ( a - b )(a^2 + ab + b^2 ) (a + b) ( a^2 - ab + b^2 )

=>a (a-b) (a +b ) (a^2+ab +b^2 ) (a^2 - ab +b^2 )

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【 hope helps 】
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