Ex 5.2, 1 Class 8 - Find square of 93 without actual multiplication - Ex 5.2

Remove Ads

Transcript

Ex 5.2, 1 Find the square of the following numbers. (iv) 93We know that 93 = 90 + 3 Now, 932 = 93 × 93 = (90 + 3) × (90 + 3) = (90 + 3)2 = 902 + 32 + 2 × 90 × 3 = 8100 + 9 + 540 = 8649

Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh is an IIT Kanpur graduate and has been teaching for 16+ years. At Teachoo, he breaks down Maths, Science and Computer Science into simple steps so students understand concepts deeply and score with confidence.

Many students prefer Teachoo Black for a smooth, ad-free learning experience.