
Persamaan Kuadrat
Authored by Nufi EBS
Mathematics
10th Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bentuk umum dari persamaan kuadrat x( x – 4 ) = 2x + 3 adalah .....
x2 – 2x + 3 = 0
x2 – 6x – 3 = 0
2x2 + 6x – 3 = 0
x2 – 8x – 3 = 0
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
21
19
-15
8
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Himpunan penyelesaian dari persamaan kuadrat x2 – 2x – 15 adalah .....
{-3, 5}
{3, 5}
{3, -5}
{-3, -5}
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Persamaan kuadrat memiliki akar x1 dan x2. Nilai 3x1 . 3x2 adalah .....
-4
-8
6
-6
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebuah kelereng dijatuhkan dari atap suatu gedung. Persamaan gerak kelereng tersebut mengikuti persamaan ketinggian seperti berikut.
h(t) = 3t2 – 12t -12 dengan t dalam detik dan h dalam meter
Waktu yang diperlukan kelereng untuk mencapai tanah adalah .....
4
1
3
2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Andi berencana membeli sebidang tanah yang luasnya 80 m2. Pemilik tanah hanya memberi tahu jumlah panjang dan lebarnya, yaitu 21 m. Keliling tanah tersebut adalah ..... m
56
42
48
64
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nilai diskriminan dari 4x2 – 2x + 1 = 0 adalah .....
12
-15
-12
-14
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