Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class
Last updated at May 29, 2023 by Teachoo
Ex 5.2, 1 Find the square of the following numbers. (i) 32We know that 32 = 30 + 2 Now, 322 = 32 × 32 = (30 + 2) × (30 + 2) = 30 × (30 + 2) + 2 × (30 + 2) = 30 × 30 + 30 × 2 + 2 × 30 + 2 × 2 = 900 + 60 + 60 + 4 = 1024