Question

Write as verbal sentence 4y2-3=13

Answer 1

you mean something like "four time y square minus three equal to thirteen." right?

Answer 2

@Hero

Answer 3

As a similar example, if it were:
\[8z^2+7=9\] I might say something like:

The sum of 7 and the product of 8 and z squared is equal to 9.

But I'm not really sure if that's what you're going for?....