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2.1 EQUATIONS

Authored by CIK Moe

Mathematics

12th Grade

Used 11+ times

2.1 EQUATIONS
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15 questions

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1.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Solve the index equation  4x2x=64(4+x)4^x\cdot2^x=64^{\left(4+x\right)} 

 x=8x=-8  

 x=8x=8  

 x=3x=-3  

 x=3x=3  

2.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Solve the equation 4(2x3)=1128x\sqrt{4^{\left(2x-3\right)}}=\frac{1}{128^x}  .


 x=13x=\frac{1}{3}  

 x=13x=-\frac{1}{3}  

 x=3x=3  

 x=3x=-3  

3.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Solve the equation 73n=487+7(3n2)7^{3n}=\frac{48}{7}+7^{\left(3n-2\right)}  .

 n=7n=7  

 n=17n=\frac{1}{7}  

 n=13n=-\frac{1}{3}  

 n=13n=\frac{1}{3}  

4.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Solve the equation log8(x2+3x2)=1\log_8\left(x^2+3x-2\right)=1  .

x=-5, x=2

x=-2, x=5

x=2

x=-5

5.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Solve the equation 9log3x=649^{\log_3x}=64  

x=-8

x=8

x=8, x=-8

6.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Solve the equation logk4+13logk8=3\log_k4+\frac{1}{3}\log_k8=3  

k=-8

k=8

k=-2

k=2

7.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Given log2m=r\log_2m=r and  log2n=s\log_2n=s . Express  log2(m264n3)\log_2\left(\frac{m^2}{64n^3}\right)  in terms of r and/or s.

2r-6-3s

2r-6+3s

r-6-3s

r-6+3s

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