5x3²+6(11+9)

if there isnt a +,-,x,or division sign between the 6 and the braket does that meen i automatically put in a multiplication sign?
i remember my teacher telling me,, i just forget

You don't need to put in the multiplication sign, but yes, you do multiply at that point, once you've solved what's in the parentheses.

Remember PEMDAS:
http://www.mathsisfun.com/operation-order-pemdas.html

Yes, if there isn't a clear arithmetic operator (+, -, *, /) between the number 6 and the bracketed expression (11+9), you should assume it is a multiplication operation. In this case, you would multiply 6 by the result of the expression inside the brackets (11+9).

To solve the problem, you can follow the order of operations, also known as PEMDAS/BODMAS. This acronym stands for Parentheses/Brackets, Exponents/Orders, Multiplication/Division, and Addition/Subtraction.

Let's break down the expression step by step:

1. Start with what's inside the brackets: 11 + 9 = 20.

2. Calculate the exponent: 3² = 3 x 3 = 9.

3. Multiply the result of the exponent by 5: 5 x 9 = 45.

4. Multiply 6 by the result from step 1: 6 x 20 = 120.

5. Finally, add the result from step 3 to the result from step 4: 45 + 120 = 165.

Therefore, the final answer is 165.