What is the sum of the polynomials? (8x^2 -9y^2-4x)+(x^2-3y^2-7x)
A 7x^2-6y^2+3x
B 9x^2-6y^2+3x
C 9x^2-12y^2+3x
D 9x^-12y^2-11x
there are the answers but if you want to see them in a file i included the entire question and answers in a file

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )

the answer is d

hope this

the answer is 5/14.

hope this .

(2,6)

step-by-step explanation:

cause i just did this and got the answer

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