Question

三倍根号2乘（2倍根号12-4倍根号八分之一+3倍根号48）

Answer 1

原式=3√2×[2√12-4√(1/8)+3√48]

=3√2×[2√(2²×3)-4√(2/4²)+3√(4²×3)]

=3√2×[2×2√3-4×(√2)/4+3×4√3]

=3√2×(4√3-√2+12√3)

=3√2×4√3-3√2×√2+3√2×12√3

=3×4×√(2×3)-3×2+3×12×√(2×3)

=12√6-6+36√6

=48√6-6