-4x+6x squared +5x

This expression contains two terms:

-4x and 6x^2.

We can combine like terms by adding the coefficients of the x terms.
-4x + 5x = x

So the simplified expression is:
6x^2 + x.

To simplify the expression -4x + 6x^2 + 5x, we can combine like terms:

Step 1: Rearrange the terms in descending order of the exponent of x:
6x^2 - 4x + 5x

Step 2: Combine like terms:
(6x^2) + (-4x + 5x)

Step 3: Combine the x terms:
6x^2 + (5x + (-4x))

Step 4: Simplify:
6x^2 + (5x - 4x)

Step 5: Combine like terms:
6x^2 + x

The simplified expression is 6x^2 + x.