Question

if a =1/9-4√5 and b= 1/9+4√5, find the value of :
a)a2-b2
b)a3-b3

Answer 1

Step-by-step explanation:

Here is your Answer Step by step. in image.

Answer 2

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HERE IS UR ANSWER

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$a = \frac{1}{9} - 4 \sqrt{5} \\ b = \frac{1}{9} + 4 \sqrt{5} \\ \implies \: {a}^{2} - {b}^{2} = (a - b)(a + b) = \frac{2}{9}$