How do I compose existing Linq Expressions

I want to compose the results of two Linq Expressions. They exist in the form

Expression<Func<T, bool>>

So the two that I want to compose are essentially delegates on a parameter (of type T) that both return a boolean. The result I would like composed would be the logical evaluation of the booleans. I would probably implement it as an extension method so my syntax would be something like:

Expression<Func<User, bool>> expression1 = t => t.Name == "steve";
Expression<Func<User, bool>> expression2 = t => t.Age == 28;
Expression<Func<User, bool>> composedExpression = expression1.And(expression2);

And later on in my code I want to evaluate the composed expression

var user = new User();
bool evaluated = composedExpression.Compile().Invoke(user);

I have poked around with a few different ideas but I fear that it is more complex than I had hoped. How is this done?