100 Property Investment Tips: Learn from the experts and accelerate your success

100 Property Investment Tips: Learn from the experts and accelerate your success

Matematika 21. Hasil dari √5 (√60-√15) 15) adalah .... A. -75√5 B. -95√5 C. 75√5 D. 95√5​

21. Hasil dari √5 (√60-√15) 15) adalah .... A. -75√5 B. -95√5 C. 75√5 D. 95√5​

Penjelasan dengan langkah-langkah:

[tex] \sqrt{5} ( \sqrt{60} - \sqrt{15})15) [/tex]

[tex] = \sqrt{5} ( 15 \sqrt{60} - 15 \sqrt{15} )[/tex]

[tex] = \sqrt{5} (15 \sqrt{4 \times 15} - 15 \sqrt{15} )[/tex]

[tex] = \sqrt{5} (15 \times 2 \sqrt{15} - 15 \sqrt{15} )[/tex]

[tex] = \sqrt{5} (30 \sqrt{15} - 15 \sqrt{15} )[/tex]

[tex] = \sqrt{5} (15 \sqrt{15)} [/tex]

[tex] = 15 \sqrt{75} [/tex]

[tex] = 15 \sqrt{25 \times 3} [/tex]

[tex] = 15 \times 5 \sqrt{3} [/tex]

[tex]75 \sqrt{3} [/tex]

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