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Asked: 2021-08-06T08:03:13+05:30 In:

Simplify each of the following expressions:(iii) (√5+√2)2 ,(iv) (√5-√2)(√5+√2) Q.2 (3),(4)

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Find the easiest solution of chapter number system of ncert class 9th give me the best solution of the exercise 1.5 question number 2(3),(4) . How i solve this important question in a simplest method , please sir help me to solve  this tricky question in a simple method.Simplify each of the following expressions:(iii) (√5+√2)2 ,(iv) (√5-√2)(√5+√2)

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      (iii) (√5+√2)2

      Solution:

      (√5+√2)2 = √52+(2×√5×√2)+ √22

      = 5+2×√10+2 = 7+2√10

      (iv) (√5-√2)(√5+√2)

      Solution:

      (√5-√2)(√5+√2) = (√52-√22) = 5-2 = 3

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