Question

simplify （4+√2） （7-√2）


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Answer 1

$(4 + \sqrt{2} )(7 - \sqrt{2} )$

$4(7 - \sqrt{2} ) + \sqrt{2} (7 - \sqrt{2} )$

$28 - 4 \sqrt{2} + 7 \sqrt{2} - 2$

$3 \sqrt{2} + 26$

Answer 2

Step-by-step explanation:

$(4 + \sqrt{2} ) \: \: (7 - \sqrt{2)} \\ 28 - 4 \sqrt{2} + 7 \sqrt{2} - \sqrt{2 {}^{2} } \\ 28 + 3 \sqrt{2} - 2 \\ 26 + 3 \sqrt{2}$