Question

using the Suitable identity find the Square
i (0.4p -0.5q) ^2
ii 95×103​

Answer 1

2 Answer

Here,

Here,x = 100

Here,x = 100a = -5

Here,x = 100a = -5b = 3

Here,x = 100a = -5b = 3Therefore,

Here,x = 100a = -5b = 3Therefore,(100 - 5) \times (100 + 3) = 100^2 + ( - 5 + 3)100 + (-5)(3)\\\\(100 - 5) \times (100 + 3) = 10000 -200 -15\\\\(100 - 5) \times (100 + 3) = 9785

Here,x = 100a = -5b = 3Therefore,(100 - 5) \times (100 + 3) = 100^2 + ( - 5 + 3)100 + (-5)(3)\\\\(100 - 5) \times (100 + 3) = 10000 -200 -15\\\\(100 - 5) \times (100 + 3) = 9785Thus 95 x 103 using identities is 9785