Use your exponent laws to split the exponent addition into multiplication:

We also know that so we can say that

Collect terms with x on the LHS and those without on the RHS:

We also know that and hence the LHS is equal to

Overall therefore:

Can you solve for x using logarithms from here?

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Edit: An alternative method is to use factorisation.

Take the log of both sides directly:

Expand the brackets:

Collect like terms:

Factor the LHS:

Divide through to solve for x

Both methods are good so use your favourite choice. They will probably be expressed differently but they're both the same answer