Question

using the identity (x+a)(x+b)=x^2 +(a+b)x +ab find the value of 26×23 pls answer step by step and correctly ​

Answer 1

Answer:

598

Step-by-step explanation:

26 can be written as 20 + 6 ---1

23 can be written as 20 + 3 ---2

Identity to be used = (x+a)(x+b) = x^2 + (a+b)x + ab

x = 20

a = 3 from ---1

b = 6 from ---2

(20)^2 + (3 + 6)20 + 3*6

400 + 9*20 + 18

400 + 180 + 18

= 598

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