Answer:
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Step-by-step explanation:
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Step-by-step explanation:
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A trinomial is a polynomial with three terms. It can be determined if it is a difference of two squares when you factor it.
The resulting factor of a trinomial that is a difference of two squares is: a²<span> – b</span>²<span> = (a + b)(a – b) or (a – b)(a + b)</span>
You will notice that the middle term is missing. This means that the middle term zeroes out as a result of having the same number of different signs (+ and -)
On the bottom left, the answer is subtraction property of equality because you need to subtract 4x to the 7x to simplify the equation.
