without actually calculateing the cubes find the value of (45)cube +(35)cube
millionerboy:
urgent
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apply the identity of a3 + b3 = (a + b) (a2 − ab + b2)
Answered by
3
45 cube+ 36 cube
= (45+35)[45^2+35^2-45*35]
=80(2025+1225-1575]
= 80*1675
=134000
= (45+35)[45^2+35^2-45*35]
=80(2025+1225-1575]
= 80*1675
=134000
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