jika√9-x+1=√x+4 maka x²-x³ =
Matematika
Jakputra
Pertanyaan
jika√9-x+1=√x+4 maka x²-x³ =
1 Jawaban
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1. Jawaban Anonyme
√9-x+1=√x+4
3-x+1=√x+4
4-x=√x+4
4-4=√x+x
0=√x(1+√x)
jadi
√x=0
x1 = 0
1+√x = 0
√x=-1
x=(-1)² = 1
maka
x²-x³ = (1)²-(1)³=1-1=0