Question

Evaluate [20x ÷ 5 · (-x)] + 3

Answer 1

Order of operations, the order in which to do them
pemdas
parenthasees
exponents
multiplication or division (whichever comes first)
addition or subtraction (whichever comes first)
so

inside parenthaees first
20x/5=4x

now we has
[4x*(-x)]+3
multiply
4x*-x=-4x²

now we has
[-4x²]+3
-4x²+3 is the eavlauted form