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Caranya = Keluarkan angkanya dari tanda kurung dengan mengkalikan dengan -
1 + 3√2 -4 -(-√50)= 1 + 3√2 -4 + 5√2 (N/B: √50=√25 x √2= 5√2)
= 8√2 - 3
Terima Kasih.. ^^