Evaluate [20x : 5 · (-x) ] + 3

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