Jawaban:
semoga membantu kak, tolong jadikan jawaban tercerdas ya☺️❤️
Penjelasan dengan langkah-langkah:
= √45 + √245 + √20 - √405
= √3².5 + √7².5 + √2².5 - √9².5
= 3√5 + 7√5 + 2√5 - 9√5
= (3+7)√5 + (2-9)√5
= 10√5 - 7√5
= (10-7)√5
= 3√5 (b)
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Jawaban:
semoga membantu kak, tolong jadikan jawaban tercerdas ya☺️❤️
Penjelasan dengan langkah-langkah:
= √45 + √245 + √20 - √405
= √3².5 + √7².5 + √2².5 - √9².5
= 3√5 + 7√5 + 2√5 - 9√5
= (3+7)√5 + (2-9)√5
= 10√5 - 7√5
= (10-7)√5
= 3√5 (b)