Jawaban:
√27 + √12 - √300
= √9.√3 + √4.√3 - √100.√3
= 3√3 + 2√3 - 10√3
= -5√3
....
√75 - √48 + √28
= √25.√3 - √16.√3 + √4.√7
= 5√3 - 4√3 + 2√7
= 2√7 + √3
.....
soal no 3 kurang jelas ap yg ditya.
5(3√5 + √500)
= 15√5 + 5√500
= 15√5 + 5.√100.√5
= 15√5 + 50√5
= 65√5
(√5 + √6) (√5 - √6)
= 5 - 6
= -1
2/√7 = 2/√7 . (√7)/(√7)
= 2√7/7
10/3√5 = 10/3√5 . (√5)/(√5)
= 10√5/15
= 2√5/3
2√2/√5 - √3
= 2√2(√5 + √3) / (√5 - √3) (√5 + √3)
= 2√10 + 2√6 / 5 - 3
= 2√10 + 2√6 / 2
= √10 + √6
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Jawaban:
√27 + √12 - √300
= √9.√3 + √4.√3 - √100.√3
= 3√3 + 2√3 - 10√3
= -5√3
....
√75 - √48 + √28
= √25.√3 - √16.√3 + √4.√7
= 5√3 - 4√3 + 2√7
= 2√7 + √3
.....
soal no 3 kurang jelas ap yg ditya.
....
5(3√5 + √500)
= 15√5 + 5√500
= 15√5 + 5.√100.√5
= 15√5 + 50√5
= 65√5
....
(√5 + √6) (√5 - √6)
= 5 - 6
= -1
.....
2/√7 = 2/√7 . (√7)/(√7)
= 2√7/7
....
10/3√5 = 10/3√5 . (√5)/(√5)
= 10√5/15
= 2√5/3
....
2√2/√5 - √3
= 2√2(√5 + √3) / (√5 - √3) (√5 + √3)
= 2√10 + 2√6 / 5 - 3
= 2√10 + 2√6 / 2
= √10 + √6