Cutiepo0
SImplify:
³/16 + ³/54
(Third root of 16 + third root of 54)



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Cutiepo0
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\[\sqrt[3]{16}+\sqrt[3]{54}\]

amistre64
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3rt(16) + 3rt(54) might be easier to write :)

Cutiepo0
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Thanks :)

amistre64
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to add them you need to get like terms under the radicals

Cutiepo0
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how do I do that?

amistre64
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like factors if you will

amistre64
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hmmm, try converting to exponents and see if we can play with those maybe?

amistre64
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\[16^{1/3}+54^{1/3}\]
hmm

Cutiepo0
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so like: \[16^{1/3} + 54^{1/3}\]

jimmyrep
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3
= 3rt (8*2) + 3rt(27*2)
= 2 3rt2 + 3 3rt2
= 5 3rt2

amistre64
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4*4 = 16 that aint it
9*6 = 54 .... thatll do it

amistre64
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not mine; jimmys lol

amistre64
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might help if I could recall the perfect cubes :/

Cutiepo0
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THanks jimmy's was right, but I don't know how he too hte 2 and the 3 from under the radical sign???

Cutiepo0
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how he took the**

Cutiepo0
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oh! never mind thanks :)