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Analuiz4s
@Analuiz4s
May 2020
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(x+2)(x-16)+(x+7)²=89
me ajudem pelo amor de deus
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nickexposito
( x + 2 ) . ( x - 16 ) + ( x + 7 )² = 89
x² - 16x + 2x - 32 + ( x + 7 ) . ( x + 7 ) = 89
x² - 14x - 32 + x² + 7x + 7x + 49 = 89
2x² + 17 = 89
2x² = 72
x² = 72 / 2
x² = 36
x = √36
x = 6
3 votes
Thanks 17
guydelima
(x+2)(x-16) + (x+7)² = 89
(x+2)(x-16) + (x+7)(x+7) = 89
(x²-16x+2x-32) + (x²+7x+7x+49) = 89
x²-14x-32+x²+14x+49=89
2x²+17=89
2x²=89-17
2x² = 72
x² = 72/2
x²= 36
x = √36
x = 6
2 votes
Thanks 5
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Lista de comentários
x² - 16x + 2x - 32 + ( x + 7 ) . ( x + 7 ) = 89
x² - 14x - 32 + x² + 7x + 7x + 49 = 89
2x² + 17 = 89
2x² = 72
x² = 72 / 2
x² = 36
x = √36
x = 6
(x+2)(x-16) + (x+7)(x+7) = 89
(x²-16x+2x-32) + (x²+7x+7x+49) = 89
x²-14x-32+x²+14x+49=89
2x²+17=89
2x²=89-17
2x² = 72
x² = 72/2
x²= 36
x = √36
x = 6