CBSE Class 8 Answered
using identities (formulae),evaluate:78×82
Asked by sahibsinghsekhon000 | 06 Jan, 2021, 08:33: AM
Using the identity (a - b)(a + b) =a2 - b2
78 x 82 = (80 - 2) x (80 + 2) = 802 - 22 = 6400 - 4 = 6396
Answered by Renu Varma | 07 Jan, 2021, 10:48: AM
Concept Videos
CBSE 8 - Maths
Asked by sandippaliwal49 | 02 Jan, 2022, 08:41: PM
CBSE 8 - Maths
Asked by amiteshyadav648 | 29 Jul, 2021, 08:44: PM
CBSE 8 - Maths
Asked by jagannathmahatha619 | 26 Jan, 2021, 08:49: PM
CBSE 8 - Maths
Asked by sahibsinghsekhon000 | 06 Jan, 2021, 08:33: AM
CBSE 8 - Maths
Asked by reena25yogi | 28 Nov, 2020, 10:36: AM
CBSE 8 - Maths
Asked by sssuman097 | 18 Jul, 2020, 04:58: PM
CBSE 8 - Maths
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
CBSE 8 - Maths
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
CBSE 8 - Maths
Asked by Topperlearning User | 31 Oct, 2017, 10:44: AM
CBSE 8 - Maths
Asked by Topperlearning User | 31 Oct, 2017, 10:44: AM