Explanation please
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Hint: try x^2 + 2x + 1 and x^2 + 2x + 4.
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A? is it a?
its D
consider f(x) = x^{2} - 3
number of solutions for f(x) is 2
f(x)+ 3 = x^{2}
Number of solutions for f(x)+3 is 1
In this case number of solutions of f(x) are greater than number of solutions of f(x)+3
Now consider f(x) = x^{2} -6
number of solutions for f(x) is 2
f(x) + 3 = x^{2} -3
number of solutions for f(x)+3 is 2
In this case number of solutions of f(x) is equal to that of f(x) + 3. So the answer must be D