Qualification > Math

can any1 solve this maths question.

(1/4) > >>

immortal:
3^(x+2)=3^x+3^2

Saladin:
Working on it.

nid404:
base is the same

so x+2= (x+3)2
x+2 = x2+6x+9
x2+5x+7=0

solve the quadratic equation
u get x= -2.5

immortal:
3x+2=3x+32

as per calculator, i get ans as 0.1072 (4s.f)
i wanna 2 kno how 2 derive at this ans.

nid404:

--- Quote from: immortal on April 20, 2010, 04:22:15 pm ---3x+2=3x+32

as per calculator, i get ans as 0.1072 (4s.f)
i wanna 2 kno how 2 derive at this ans.

--- End quote ---

I guess I haven't gotten ur question right then :-\

Is it
3x+2=3x+32
or is it
3x+2=3(x+3)2

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