Question

If a=b=2, then the value of ( a - b) ( a2 + ab - b2 )

2 means square

Answer 1

ANSWER

a? + b? = 85, ab = 2

(a b)? = a? =

= 85 – 2(2)

= 85 - 4

= 81

.. a b = 9

Step-by-step explanation:

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