Think of a whole number Subtract 2. Take the original number and add to find the product of the numbers. Subtract the square of
the original number use polynomials to show how this number trick works
1 answer:
Answer:
(x - 2)(x + 2) - x^2 ?=? -4
Let's simplify the left hand side.
(x - 2)(x + 2) - x^2
x^2 - 2x + 2x - 4 - x^2
(x^2 - x^2) + (-2x + 2x) + (-4)
0 + 0 + -4
-4
Step-by-step explanation:
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