Q : 1      Verify Identity (IV), for    a=2,b=3,x=5.

Answers (1)

Identity IV  
                     (a + x)(b + x) = x^{2} + (a+b)x + ab
So, it is given that a = 2, b = 3 and x = 5
Lets put these value in identity  IV 
                   (2 + 5)(3 + 5) = 5^{2} + (2 + 3)5 +2 X 3
                    7 X 8 = 25 + 5 X 5 + 6
                       56 = 25 + 25 + 6
                             = 56
L.H.S. = R.H.S. 
So,  by this we can say that identity IV satisfy with given value of a,b and x

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