SOLUTION: help me solve these please approximate the folllowing logarithms to 3 d.p; a)log base 2 23 2)log base3 32 3) 5 to the power2x

SOLUTION: help me solve these please approximate the folllowing logarithms to 3 d.p; a)log base 2 23 2)log base3 32 3) 5 to the power2x - 7(5 to the power of x)+10=0

Question 841097: help me solve these please
approximate the folllowing logarithms to 3 d.p;
a)log base 2 23
2)log base3 32
3) 5 to the power2x - 7(5 to the power of x)+10=0
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!

 

Hi,

Note:





3)   Let 

  y^2 - 7y + 10 = 0

 (y-5)(y-2) = 0,  y = 5   0r   y = 2



 log(5)/log(5) = x

 log(2)/log(5) = x 

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