What does 4a^2+6b^3= when a=3 and b=4?

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2007-01-30 09:06:29 · 3 answers · asked by Mark L 1 in Science & Mathematics ➔ Mathematics

4*(3)^2 + 6*(4)^3
4*9 + 6*64
36 + 384
420

2007-01-30 09:12:43 · answer #1 · answered by smawtadanyew 2 · 0⤊ 0⤋

4a^2+6b^3=

plug the three in for the 'a' and the four in for the 'b'

4(3)^2+6(4)^3

do the powers next

4(9)+6(64)

multiply

36+384

add

420

2007-01-30 09:24:44 · answer #2 · answered by DiDi 2 · 0⤊ 0⤋

4(9)+6(64)=420

2007-01-30 09:12:15 · answer #3 · answered by Veer 3 · 0⤊ 0⤋