Question

find the square of the following.
(a) 32 (b) 71 (c) 86 (d) ​

Answer 1

Answer:

the square of the following question are

Step-by-step explanation:

32= 1024

71= 5041

86= 7396

Answer 2

USING THE IDENTITY ⇒ (a + b)² = (a)² + 2ab + (b)²

(a) 32 ⇒ (30 + 2)² = (30)²  +2 × 30 × 2 + (2)² = 900 + 120 + 4 = 1024

(b)  71 ⇒ (70 + 1)² = (70)² + 2 × 70 × 1 + (1)² = 4900 + 140 + 1 = 5041

(c) 86 ⇒ (80 + 6)² = (80)² + 2 × 80 × 2 + (6)² = 8100 + 540 + 9 = 8649

HOPE IT HELPS:)