Solve 4^(x+2) = 12 for x using the change of base formula log base b of y equals log y over log b.

x=ln(12)/ln(4)-2

Step-by-step explanation:

4^(x+2)=12

x+2=ln(12)/ln(4)

x=ln(12)/ln(4)-2

Step-by-step explanation:

By applying logarithms to each side of the equation and some algebraic handling:

x² + 11x + 18 < 0  

[-11 ± sqrt(121 - 72)]/2 = (-11 ± 7)/2  

solution: (-9, -2)

step-by-step explanation:

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