WAEC - Mathematics (2018 - No. 1)
Simplify: \(\sqrt{108} + \sqrt{125} - \sqrt{75}\)
\(\sqrt{3} + 5\sqrt{5}\)
\(6 \sqrt{3} - 5 \sqrt{5}\)
\(6 \sqrt{3} + \sqrt{2}\)
\(6\sqrt{3} - \sqrt{2}\)
Penjelasan
\(\sqrt{108} + \sqrt{125} - \sqrt{75}\)
= \(\sqrt{3 \times 36} + \sqrt{5 \times 25} - \sqrt{3 \times 25}\)
= \(6 \sqrt{3} + 5 \sqrt{5} - 5 \sqrt{3}\)
= \(\sqrt{3} + 5\sqrt{5}\)