Question

Evaluate using suitable identity:
a). 103²​

Answer 1

★ Solution :-

`\sf \longmapsto 103^2`

`\sf \longmapsto (a + b)^2 = a^2 + 2ab + b^2`

Here,

• a = 100
• b = 3

`\sf \longmapsto (100 + 3)^2 = 100^2 + 2(100)(3) + 3^2`

`\sf \longmapsto 100^2 + 2(100)(3) + 3^2`

`\sf \longmapsto 10000 + 600 + 9`

`\sf \longmapsto 10609`

Answer 2

• 103^2
• = (100+3)^2
• = (100)^2 + 2(100)(3) + (3)^2
• = 10000 + 600 + 9
• = 10609

Answer:

10609