Question:

Radical helpp!!!!?(math)?

by Guest56986  |  earlier

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i need help on these problems now.

SIMPLIFY.

1.)√12-√3

2.)8/√16

3.)4√5+√125+√45

4.)√100/√20

5.)√2•√50

6.)√20•√30

7.)√2(√2+√9)

8.)√75•√25

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  1. 1) √3*2*2 - √3

    2√3 - √3 = √3

    2) 8/ √2*2*2*2

    8/4 = 2

    3) 4√5 + √5*5*5 + √3*3*5

    4√5 + 5√5 + 3√5

    12√5

    4) 10/√2*2*5

    = 10/2√5 = 5/√5

    5) √100 = 10

    6) √600 = √2*3*10*10 = 10√6

    7) 2 + √18

    2 + √3*3*2

    2 + 3√2

    8) √5*5*3 . 5

    25√3

    Hope this helps :)


  2. 1) √12 - √3 = √(4 * 3) - √3 = 2√3 - √3 = √3

    2) 8 / √16 = 8 / 4 = 2

    3) 4√5 + √125 + √45 = 4√5 + √(25 * 5) + √(9 * 5) = 4√5 + 5√5 + 3√5 = 12√5

    4) √100 / √20 = 10 / √(4 *5) = 10 / (2√5) = 5 / √5

    5) √2 * √50 = √(2 * 50) = √100 = 10

    6) √20 * √30 = √(20 * 30) = √600 = √(100 * 6) = 10√6

    7) √2(√2 + √9) = √2(√2 + 3) = 2 + 3√2

    8) √75 * √25 = √(25 * 3) * 5 = 5√3 * 5 = 25√3
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