Question

find: 23^2 -22^2 for 8th class

Answer 1

Answer:42

Step-by-step explanation:

23^2 =526

22^2=484

526-484is

42

Answer 2

Answer:

${23}^{2} - {22}^{2} = (23 + 22)(23 - 22) \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 45 \times 1 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 45$

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