sederhanakanlah 4√5 / √5 + 3
Matematika
AfriskaPH
Pertanyaan
sederhanakanlah 4√5 / √5 + 3
2 Jawaban
-
1. Jawaban Rillahi
4√5 / (√5+3) . (√5-3) / (√5-3)
= (4√25 - 12√5) / √25 - 9
= 4.5 - 12√5 / 5-9
= 20 - 12√5 / -4 -
2. Jawaban arsetpopeye
4√5 / (√5 + 3)
= 4√5 / (√5 + 3) . (√5 - 3)/(√5 - 3)
= 4√5 (√5 - 3) / (5 - 9)
= 4√5 (√5 - 3) / (-4)
= -√5 (√5 - 3)
= -5 + 3√5
= 3√5 - 5