Question

$1 - 3 \sqrt{5} \times 1 + 3 \sqrt{5 } =$
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Answer 1

Answer:

-44

Step-by-step explanation:

We know that a²-b² = (a+b) (a-b)

Implies (1-3√5) (1+3√5) = 1²-(3√5)²

= 1 - 45

= -44.

Hope this helps !