Question

1.Sederhanakanlah
a.2√6(√2+4√3-1)
b.√5(2√3+4√5-√3)
2.hasilnya
a.3√5+2√5+√5

Answer 1

1.
a. 2√6(√2+4√3-1) = 2√6×√2 + 2√6 (4√3) - 2√6 (1) = 2√12 + 8√18 -2√6 = 2×2√3 +8×3√2 - 2√6 = 4√3 + 24√2 - 2√6

b. √5(2√3+4√5-√3) = √5 × 2√3 + √5 × 4√5 - √5 × √3 = 2√15 + 4 × √25 - √15 = 2√15 + 4 × 5 - √15 = 20 + √15

2.
a. 3√5 +2√5+√5 = 6√5