Penjelasan dengan langkah-langkah:
Nomor 1 :
= (1 + √2) (3 + √2)
= (1 x 3) + (1 x √2) + (√2 x 3) + (√2 x √2)
= 3 + √2 + 3√2 + 2
= 5 + 4√2
Nomor 2 :
= (2√3 + √2) (2√3 - √2)
= (2√3 x 2√3) - (2√3 x √2) + (√2 x 2√3) - (√2 x √2)
= 12 - 2√6 + 2√6 - 2
= 12 - 2
= 10
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Penjelasan dengan langkah-langkah:
Nomor 1 :
= (1 + √2) (3 + √2)
= (1 x 3) + (1 x √2) + (√2 x 3) + (√2 x √2)
= 3 + √2 + 3√2 + 2
= 5 + 4√2
Nomor 2 :
= (2√3 + √2) (2√3 - √2)
= (2√3 x 2√3) - (2√3 x √2) + (√2 x 2√3) - (√2 x √2)
= 12 - 2√6 + 2√6 - 2
= 12 - 2
= 10