Question

solve (3+√2)square using identity​

Answer 1

Answer:

Answer is in attachment

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Answer 2

Answer:

${(3 + \sqrt{2}) }^{2} = 11 + 6 \sqrt{2}$

Step-by-step explanation:

${(3 + \sqrt{2}) }^{2}$

Using identity

${(a + b)}^{2} = {a }^{2} + {b}^{2} + 2ab$

${(3 + \sqrt{2}) }^{2} = {3}^{2} + {( \sqrt{2}) }^{2} + 2 \times 3 \times \sqrt{2} \\ = 9 + 2 + 6 \sqrt{2} \\ = 11 + 6 \sqrt{2}$