Add or subtract show your work for each problem by using boxes circles colored underlined or group in to identify the like terms before you simplify. a.(-2x^2-4x+13)+(12x^2+2x-25)

b.(7x^2+4x-26)-(-7x^2-3x+15)

Answer :

(a)

(b)

Step-by-step explanation :

Part a:

The given expression is:

First we have to open the brackets.

Now adding or subtracting like terms like (x², x and number)

Part b:

The given expression is:

First we have to open the brackets.

Now adding or subtracting like terms like (x², x and number)

(2,20) means that the 2 is 2 hours and 20 is 20$. so there both 20$ for 2 hours only the same price. like it says. so, the dunk tank and the bounce house are the same price (20$) for the same amount of time (2 hours).

hope i

1^3 + 2^3 + 3^3 +4^3 = (1+2+3+4)^2

step-by-step explanation:

i am only able to answer the first part. i am not sure about the second part. sorry