QuKizZ By Kia ✔️

↘️PENYELESAIAN↙️

21^2 + × 27^2

= (21 × 21) × (27 × 27)

= (441 × 729)

= 321.489

______________________

66^2 + 2^2 – 2^3

= (66 × 66) + (2 × 2) – (2 × 2) × 2

= (4.356 + 4) – (4 × 2)

= (4.360 – 8)

= 4.352

Jawaban:

Cara √

21² = 21 × 21 = 441

27² = 27 × 27 = 729

= 441 × 729

= 321.489

66² = 66 × 66 = 4.356

2² = 2 × 2 = 4

2³ = 2 × 2 × 2 = 8

= 4.356 + 4 – 8

= 4.360 – 8

= 4.352