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prisoha [69]
3 years ago
8

Easy math asap please

Mathematics
1 answer:
joja [24]3 years ago
4 0

Answer:

81{x}^{2}  + 18x \sqrt{2} + 2

Step-by-step explanation:

(9x +  \sqrt{2} )(9x +  \sqrt{2} ) \\  =  {(9x)}^{2}  + ( \sqrt{2}  +  \sqrt{2} ) \times 9x +  \sqrt{2}  \times  \sqrt{2}  \\  = 81 {x}^{2}  + 2 \sqrt{2}  \times 9x + 2 \\ =  81{x}^{2}  + 18x \sqrt{2} + 2 \\

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