Question

evaluate 4a3 + 5b4 when a=2 and b=5​

Answer 1

Answer:

$4 {a}^{3} + 5 {b}^{4} = 4( {2}^{3}) + 5( {5}^{4} ) \\ = 4(8) + 5(625) \\ = 32 + 3125 \\ = 3157$

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