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vetraxgamer
@vetraxgamer
April 2022
1
25
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Fatore cada uma as expressoes algebricas: por favor me ajudem
x^2 - 121
81 - q^2
4z^2 - 25
5x + 5z
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emicosonia
Fatore cada uma as expressoes algebricas: por favor me ajudem
x^2 - 121
x² - 121 = 0
x² = + 121
x =
+
√121 fatorar 121| 11
11| 11
1/ = 121 = 11x11 = 11²
x =
+
√121 = √11.11 = √11² = 11 (elimina a √(raiz) com o (²)
x' = 11
x" = - 11
81 - q^2
81 - q² = 0
- q² = - 81
q² = (-)(-)81
q² = + 81
q =
+
√81 81| 3
27| 3
9| 3
3| 3
1/ = 81 = 3.3.3.3 = 3.2.3.2
q =
+
√81 = √3.3.3.3 = √3².3² = 3.3 = 9 (idem acima)
q = + 3
q = - 3
4z^2 - 25
4z² - 25 = 0
4z² = 25
z² = 25/4
z = √25/4
√25 √25 = 5 e √4 = 2
z =
+
-------
√4
5
z =
+
------
2
z' = 5/2
e
z" = - 5/2
5x + 5z
5(x + z) =
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Lista de comentários
x² - 121 = 0
x² = + 121
x = + √121 fatorar 121| 11
11| 11
1/ = 121 = 11x11 = 11²
x = + √121 = √11.11 = √11² = 11 (elimina a √(raiz) com o (²)
x' = 11
x" = - 11
81 - q^2
81 - q² = 0
- q² = - 81
q² = (-)(-)81
q² = + 81
q = + √81 81| 3
27| 3
9| 3
3| 3
1/ = 81 = 3.3.3.3 = 3.2.3.2
q = + √81 = √3.3.3.3 = √3².3² = 3.3 = 9 (idem acima)
q = + 3
q = - 3
4z^2 - 25
4z² - 25 = 0
4z² = 25
z² = 25/4
z = √25/4
√25 √25 = 5 e √4 = 2
z = + -------
√4
5
z = + ------
2
z' = 5/2
e
z" = - 5/2
5x + 5z
5(x + z) =