Answer: The answer is 45
Step-by-step explanation:
So whenever we plug in 3 for x, equation changes to this
2(3^3) + 4(3^2) - 3(3^2) - 6(3) -- "Parenthesis meaning multiply what's in the parenthesis to the number in front of it"
Due to the law of the order of operations (Parenthesis, Exponents, Multiplication/Division, Addition, Subtraction), we are going to first half to find out the value of whats in the parenthesis so
3^3 = 27 3^2 = 9 3^2 = 9 and last one is just 3
so now you have
2(27) + 4(9) - 3(9) - 6(3)
Then we multipy the numbers inside and outside of the parenthesis, giving you 54+36-27-18
And when you add and subtract them all up you get, 45
