Question

Multiply: ³√7 and √ 5​

Answer 1

Answer:

$\sqrt{7} \times \sqrt{5} = \sqrt{35}$

Answer 2

Answer:

³√2 × √5

These are unlike surds

( means one is cubic root and other is square root)

So we need to make their order the same

LCM of their orders 2 , 3 = 6

We will convert them of sixth order surds

³√2 = ⁶√2² = ⁶√4

√5 = ⁶√5³ = ⁶√125

Now we can multiply these

³√2 × √5 = ⁶√4 × ⁶√125 = ⁶√500

³√2 × √5= ⁶√500

Step-by-step explanation:

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