If a=4 and b=5, find the value of a3 + b3 - 3a2b + 3ab2.
Plzzzz ans it very quick.
Answers
Answered by
20
Step-by-step explanation:
(4)3+(5)3-3*(4)2*5+3*4*(5)2
=64+125-240+300
=249
Answered by
4
Answer:249
Step-by-step explanation: a=4 b=5 then,=(4)^3 + (5)^3 - 3 (4)^2 (5) + 3(4) (5)^2
64 + 125 - 3 (16) (5) + 3 (4) (25)
189 - 240 + 300
189 - 489
= 249
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