simplify the value of (1+3√2)^2
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Answer:
19 + 6√2
Step-by-step explanation:
( 1 + 3√2 )²
= 1² + ( 3√2 )² + 2 × 1 × 3√2
= 1 + 9 × 2 + 6√2
= 1 + 18 + 6√2
= 19 + 6√2
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