Shake any expression or sub-expression (like an exponent) to bring up the keyboard. This will let you change the expression to anything equivalent.

What does rewrite mean in math?

Shake any expression or sub-expression (like an exponent) to bring up the keyboard. This will let you change the expression to anything equivalent.

How do you write in terms of something?

Idiomatically speaking, to write a function “in terms of” a given variable or variables means to write an algebraic expression using only that variable or variables. So for instance, given an equation x+2y−3z=0, we can solve for z in terms of x and y as z=13(x+2y).