Answer:
C.(10x^2-4) - (7x^2+3)
In option C,
(10x^2-4) - (7x^2+3) = 10x^2 - 4 - 7x^2 - 3 = 3x^2 - 7
⇒ Option C is correct
(a) Using the completing the square method, we need to write into the form of where , so
Expand to find the value of c
Notice that we get back the first two terms, the and the .We need to get rid of the last term of '9' as the term was not in the original form. The final form will look like
Hence,
(b)
(c) , square root both sides plus and minus of 2 Hence
Answer:

Step-by-step explanation:
From the y-intercept og
, travel five unit south over two unit east. Doing so will get yoy to the endpoint of
, which tells you that the rate of change is
, Therefore, your equation, in Solpe Intercept Form , is 

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I think the equation would be S-J=difference of marriage.