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  • October 9, 2022 at 9:27 am #22954
    Aryan Thakur
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      a3 + b3 is equal to = ________

      October 9, 2022 at 9:36 am #22956
      ProtonsTalk
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        a3 + b3 formula is (a+b)(a2 + b2 – ab)

        Explanation:

        We know the formula of (a+b)3

        (a+b)3 = a3 + b3 + 3ab(a+b)

        => a3 + b3 = (a+b)3 – 3ab(a + b)

        => a3 + b3 = (a+b)((a+b)2 – 3ab)

        => a3 + b3 = (a+b)(a2 + b2 + 2ab – 3ab)

        => a3 + b3 = (a+b)(a2 + b2 – ab)

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