Respuesta :

Answer:

Step-by-step explanation:

here you go mate

PEMDAS

Parentheses, Exponents, Multiplication, Division, Addition, Subtraction

step 1

4x - 8x + 3x^2  equation/question

step 2

4x - 8x + 3x^2  simplify

4x+8x+3x^2

step 3

4x+-8x+3x^2  CLT

3x^2+-4x

answer

3x^2+-4x