If there is no sign in front of the brackets then do I have to multiply all the signs with it and if so what do I do if there is a negative number in front of it or there is a subtraction sign in the brackets?

See Explanation

Step-by-step explanation:

Before I proceed, take note of the following:

If there is no sign in front of the bracket, the sign there is addition/positive, you simply multiply the number outside with what is inside the bracket.

If there is a negative number in front of the bracket, you use the negative number to to multiply each of the terms inside the bracket.

You will notice that we have used -2 to multiply all the terms inside the bracket and wherever there is a minus inside the bracket, the product is now positive.

10 b/c 5*2 =10

step-by-step explanation: