Question

add a^2+2ab+b^2,a^2-2ab+a^2anda^2-b^2

Answer 1

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Answer 2

Given entities to add are:

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