SOLUTION: i have no clue how to answer this can some one please help me. Multiply and simplify. Show your steps please.
1. √15b × √3b
2. √5(2√10+√2x)
3. (2
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Question 482182: i have no clue how to answer this can some one please help me. Multiply and simplify. Show your steps please.
1. √15b × √3b
2. √5(2√10+√2x)
3. (2-√6)(1+√6)
thank you soo much
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
1. √15b × √3b
----
= sqrt[45b^2]
= sqrt[9b^2*5]
= 3b*sqrt(5)
=====================
2. √5(2√10+√2x)
= 2*sqrt(50) + sqrt(10x)
= 2*sqrt(25*2) + sqrt(10x)
= 2*5*sqrt(2) + sqrt(10x)
= 10sqrt(2) + sqrt(10x)
============================
3. (2-√6)(1+√6)
= 2 + 2sqrt(6) + sqrt(6) - 6
= -4 + 3sqrt(6)
==================
Cheers,
Stan H.
===========
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