Question

factorise:(a+b) square -(a-b) square

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Answer 1

Answer:

(a+b) ka square a ka square +b ka square + 2ab

Answer 2

Answer:

4ab is the answer

Step-by-step explanation:

${(a + b)}^{2} - {(a - b)}^{2} \\ {a}^{2} + {b}^{2} + 2ab - ( {a}^{2} + {b}^{2} - 2ab) \\ {a}^{2} + {b}^{2} + { 2ab} - {a}^{2} - {b}^{2} + 2ab \\ 4ab$