Persamaan Kuadrat kelas 9

Persamaan Kuadrat kelas 9

9th Grade

10 Qs

quiz-placeholder

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Persamaan Kuadrat kelas 9

Persamaan Kuadrat kelas 9

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

CCSS
HSA-REI.B.4B

Standards-aligned

Created by

Nurus Sufairo

Used 295+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Cara menentukan akar persamaan kuadrat ada tiga, kecuali ....

mengalikan akar sekawan

memfaktorkan

melengkapi kuadrat sempurna

rumus kuadratik (rumus abc)

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Bentuk umum persamaan kuadrat adalah ....

ax3+bx2c=0 , a0ax^3+bx^2-c=0\ ,\ a\ne0

ax2+bx+c=0 , a0ax^2+bx+c=0\ ,\ a\ne0

ax2+bx+c=0 , a=0ax^2+bx+c=0\ ,\ a=0

a2bx+c=0 , a=0a^2-bx+c=0\ ,\ a=0

3.

MULTIPLE CHOICE QUESTION

1 min • 12 pts

Faktor dari x2+5xx^2+5x adalah .... 

 x(x5)x\left(x-5\right) 

 x(x2+5)x\left(x^2+5\right)  

 x(x+5)x\left(x+5\right)  

 x(x+5x)x\left(x+5x\right)  

4.

MULTIPLE CHOICE QUESTION

1 min • 12 pts

Akar-akar dari persamaan kuadrat  x2+x56=0x^2+x-56=0 adalah ....

 x=14x=-14  atau x=4x=4  

 x=28x=-28  atau x=2x=-2  

 x=8x=-8  atau x=7x=7  

 x=7x=-7  atau x=8x=8  

Tags

CCSS.HSA-REI.B.4B

5.

MULTIPLE CHOICE QUESTION

1 min • 12 pts

Akar-akar dari persamaan kuadrat  x211x+30=0x^2-11x+30=0 adalah ....

 x=5x=-5  atau x=6x=-6  

 x=5x=5  atau x=6x=-6  

 x=5x=-5  atau x=6x=6  

 x=5x=5  atau x=6x=6  

Tags

CCSS.HSA-REI.B.4B

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Berikut yang merupakan rumus kuadrat (rumus abc) adalah?

x1.2 = b ±b2 4ac2ax1.2\ =\ \frac{-b\ \pm\sqrt{b^{2\ }-4ac}^{ }}{2a}

x1.2 = b ±b2 4ac2ax1.2\ =\ \frac{b\ \pm\sqrt{b^{2\ }-4ac}^{ }}{2a}

x1.2 = b ±b2 +4ac2ax1.2\ =\ \frac{-b\ \pm\sqrt{b^{2\ }+4ac}^{ }}{2a}

x1.2 = b ±b2 +4ac2ax1.2\ =\ \frac{b\ \pm\sqrt{b^{2\ }+4ac}^{ }}{2a}

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Nilai a,b,c  dari persamaan

 9x2  16 9x^2\ -\ 16\   berturut-turut adalah....

9, 16, 0

9, -16, 0

9, 0, -16

9, 0, 16

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