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Example 14 (i) - Chapter 9 Class 8 Algebraic Expressions and Identities
Last updated at Sept. 8, 2021 by Teachoo
Examples
Example 1
Example 2 Important
Example 3
Example 4 Important
Example 5 (i)
Example 5 (ii) Important
Example 6 (i)
Example 6 (ii) Important
Example 7
Example 8 (i)
Example 8 (ii)
Example 9 (i)
Example 9 (ii) Important
Example 10
Example 11 (i)
Example 11 (ii) Important
Example 12 (i)
Example 12 (ii) Important
Example 13 (i)
Example 13 (iii)
Example 13 (ii) Important
Example 14 (i) You are here
Example 14 (ii) Important
Transcript
Example 14 Use the Identity (π₯+π)(π₯+π)=π₯^2+(π+π)π₯+ππ to find the following: (i) 501 Γ 502 501 Γ 502 = (500+1)Γ(500+2) (π₯+π)(π₯+π)=π₯^2+(π+π)π₯+ππ Putting π₯ = 500 , π = 1 & π = 2 = (500)^2+(1+2)(500)+(1)(2) = 250000+(3Γ500)+2 = 250000+1500+2 = ππππππ
