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anarick13
@anarick13
August 2022
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1.Simplifique as expressões:
a.(x – 2)² + x² - 2( x – 1)²
b.(m – 1 )² - ( m + 1)(m – 1)
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luanaugusto
A) x²-4x+4+x²-2(x²-2x+1) = x²-4x+4+x²-2x²+4x-2 = x²+x²-2x²-4x+4x+4-2= 2
b) m²-2m+1-(m²-m+m-1)=m²-2m+1-m²+1=-2m+1
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Thanks 1
anarick13
obg :)
luanaugusto
:)
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b) m²-2m+1-(m²-m+m-1)=m²-2m+1-m²+1=-2m+1