Question

dikhaiye ki dikhaiye b2c minus b cube Samachar C - 1 ​

Answer 1

The formula is (a-b)³=a³-3a²b+3ab²-b³. You convert it to (a-b)³=a³-3ab(a-b)-b³ for an illustration. ... You take the drawing of the formula(a+b)³=a³+3a²b+3ab²+b³ from above and replace a by the difference a-b.

Answer 2

Answer:

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The formula is

$( {a - b})^{</em><em>3</em><em>}$ =${a}^{3} - 3 {a}^{2} b + 3a {b}^{2} - {b}^{3}$.

$=> ( {a - b})^{3} = {a}^{3} - 3ab(a - b) - {b}^{3}$

$=> ( {a + b})^{3} = {a}^{3} + 3 {a}^{2} b + 3a {b}^{2} + {b}^{3}$

Thus, you can replace by the difference a-b.

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