book Maths Puzzle Numerical Ability

solve y
2log(3,y) + log(3,0.1) = log(3,5) + log(3,2)

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book Other Question

Can anyone show me how to work this problem and then what the graph would look like...thanks

f(x)=x^2+2
factor the quadratic expression completely, and find the roots of the expression.

49x^2 - 14x - 3