Question

Expand (1+2)^4 using the Pascal Triangle​

Answer 1

81

Explanation:

(1 + 2)⁴

1⁴ + 4(1³ × 2) + 6(1² × 2²) + 4(1 × 2³) + 2⁴

1 + 4(2) + 6(4) + 4(8) + 16

1 + 8 + 24 + 32 + 16

= 81