4.
x2 - (x + 1)(x + 2)
5x + 1
= 6
Answers
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Step-by-step explanation:
x2-(x+1)(x+2)
= x2 - (x2 + 2x + x +2)
= x2 - (x2 + 3x + 2)
= x2 - x2 - 3x - 2
= -3x - 2
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