Subtracting outside the functionf(x) = x² – c or (x)² – c where c is any number.
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To subtract outside the function f(x) = x² – c, or (x)² – c, we need to understand what it means to subtract outside the function.
Let’s consider the example f(x) = x² – 3. If we wanted to subtract 2 from f(x), we would write:
f(x) – 2 = x² – 3 – 2
This simplifies to:
f(x) – 2 = x² – 5
Notice that we subtract 2 from the function by subtracting it from the constant term (-3) in the function. Similarly, we subtract any number outside the function by subtracting it from the constant term in the function.
Now, let’s consider the example (x)² – 4. If we wanted to subtract 3 from this function, we would write:
(x)² – 4 – 3 = (x)² – 7
Notice that we subtract 3 from the function by subtracting it from the constant term (-4) in the function. Similarly, we subtract any number outside the function by subtracting it from the constant term in the function.
In summary, to subtract outside the function f(x) = x² – c, or (x)² – c, we simply subtract the number from the constant term in the function.
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