√162-2√98+√72 Pliss kaka bantuin
Matematika
Windawahyuni
Pertanyaan
√162-2√98+√72
Pliss kaka bantuin
Pliss kaka bantuin
1 Jawaban
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1. Jawaban Sutr1sn0
V162 - 2V98 + V72
= V(81×2) - 2V(49×2) + V(36×2)
= 9V2 - 2×7V2 + 6V2
= 9V2 - 14V2 + 6V2
= V2
V = akar