Question

(a-b)(a+b²)+(a+ b)(a²-b²) is equal to ....please give in details don't just give the answer​

Answer 1

hope this may help you!!!

Answer 2

$\huge\bf\underline \green{Solution:-}$

Explanation:-

$: \mapsto \rm\small \: (a - b)(a + {b}^{2} ) + (a + b)( {a}^{2} - {b}^{2} ) \\ \\ : \mapsto \rm\: \small \: a( {a} + {b}^{2} ) - b( {a} + {b}^{2} ) + (a + b)( {a}^{2} - {b}^{2} ) \\ \\ : \mapsto \rm\: \small \: {a}^{2} + a {b}^{2} - ab - {b}^{3} + (a + b)( {a}^{2} - {b}^{2} ) \\ \\ : \mapsto \rm\: \small \: {a}^{2} + a {b}^{2} - ab - {b}^{3} + a( { a }^{2} - {b}^{2} ) + b({ a }^{2} - {b}^{2}) \\ \\ : \mapsto \rm\: \small \: {a}^{2} + a {b}^{2} - ab - {b}^{3} + {a}^{3} - a {b}^{2} + {a}^{2} b - {b}^{3} \\ \\ \mapsto \bf\: \small \: {a}^{3} - 2 {b}^{3} + {a}^{2} + {a}^{2} b - ab$

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