exam Maths Puzzle Numerical Ability

In using esponential and logarithmic equations, could you help with these
problems?
#1 log(2x with power of 2 + 3x)=log(10x + 30).

#2 log lower case 7(5x) - log lower case 7(3

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exam Other Question

Please help me with this problem:
Let f(x)=ln(x^2) for x > 0 and g(x)=e^(2x) for x is greater than or equal to 0. Let H be the composition of f with g, that is, H(x)=f(g(x)), and Find one angle with positive measure and one negative measure coterminal with -310 degrees