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A housepainter mixed 5 gal of blue paint with every 9 gal of yellow paint in order to make green paint. Which ratio of gallons o
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Answer:
The quadratic equation is (x + 3)(x + 4) = 5
Step-by-step explanation:
If the degree of a polynomial is two then the polynomial is known as a quadratic.
Now, in the given equations we see which polynomial has a degree 2.
Simplify the first equation
Degree is 3 and hence it is not a quadratic.
Take 2nd equation
Degree is 1 and hence it is not a quadratic.
Finally, we simplify the third equation
Apply FOIL method to simplify the left hand side
Degree is 2 and hence it is a quadratic equation.