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2√3 -3√3+√3+4√5+2√5=6√5
2.
(√2√8)-(√2)(-√3)-(√12)(√8)+(√12)(√3)
√16 + √6 +√96 + √36
4 + √6 + √16*6 + 6
4+6+√6+4√6
10 + 5√6
3.
√8+√30
√4*2 + √30
2√2 + √30
4.
2√3 - 6√2
-----------------------
2 + 2 -√3 - 2(2+√3)(2-√3)
4 - √3 -2 [(4) - 2√3 + 2√3 - 3]
4 - √3 - 8 + 4√3 -4√3 + 6
4 - 8 + 6 -√3 +4√3 +4√3
2 -√3
-----------------------
1.
5 + 5= 10
2.
√12 +√16
2√3 + 4
3.
(2√5)(2√5) + 2(2√5)(3√2) + (3√2)(3√2)
20 + 12√10 + 18
38 + 12√10
a. ( 2√3 + 4√5 ) - ( 2√5 + 3√3 ) + √3
= 2√3 + 4√5 - 2√5 - 3√3 + √3
= (2√3 + √3 - 3√3 ) + ( 4√5 - 2√5 )
= 0 + 2√5
= 2√5
b. ( √2 - √12 )( √8 - √3 )
= ( √2 - 2√3 )( 2√2 - √3 )
= 2 . 2 - √6 - 4√6 + 2 . 3
= 4 + 6 - √6 - 4√6
= 10 - 5√6
c. √8 + √2 + √15
= 2√2 + √2 + √15
= 3√2 + √15
d. √12 - √2 √ 36
= 2√3 - 6√2
2.jika x=2+√3 dan y=2-√3, maka nilai dari x pangkat 2 + y-2xy adalah ...
x² + y - 2xy
= ( 2+√3 )² + 2- √3 - 2 ( 2+√3 )( 2-√3 )
= 4 + 4√3 + 3 + 2 - √3 - 2 ( 4 -3 )
= 9 + 4√3 - √3 - 2 ( 1 )
= 9 + 3√3 - 2
= 7 + 3√3
3.bentuk paling sederhana dari :
a. √5 ( √5 + √5 )
= √5 ( 2√5 )
= 2√25
= 2 . 5
= 10
b. √2 ( √6 + √8 )
= √12 + √16
= 2√3 + 4
c. ( 2√5 + 3√2 )²
= ( 2√5 + 3√2 )( 2√5 + 3√2 )
= 4√25 + 6√10 + 6√10 + 9√4
= 4 . 5 + 12√10 + 9 .2
= 20 +12√10 + 18
= 38 + 12√10
semoga membantu Oke