Question

. Using identity, evaluate 1.25 x 0.32
please use idendity​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

0.4

Step-by-step explanation:

1.25 x 0.32 = (1+0.25) (1-0.68)

Using identity (x+a)(x+b) = x^2 + (a+b)x + ab

(1+0.25) (1-0.68) = 1^2 +(0.25 +( - 0.68))1 + 0.25 * (-0.68)

                          = 1 - 0.43 - 0.17

                          = 1 - 0.60

                          = 0.4