QUESTION IMAGE
Question
pre-algebra
assignment
find each square root.
- \\(\sqrt{16}\\)
- \\(\sqrt{100}\\)
find each square root. round to the nearest whole number.
- \\(-\sqrt{46}\\)
- \\(-\sqrt{83}\\)
- \\(-\sqrt{100}\\)
- \\(\sqrt{123}\\)
simplify each expression.
- \\((5b^2 + 3) + (5 + 7b^2)\\)
- \\((3x^2 - x^3) + (8x^2 - 7x^3)\\)
- \\((7 + 3x) - (2 - 6x)\\)
- \\((5 + 4n^3) + (2n^3 + 2)\\)
find each product.
- \\(3r^2(3r + 3)\\)
- \\(6(7x - 5)\\)
- \\(5(3r + 3)\\)
- \\(8p^3(8p - 1)\\)
simplify each expression.
- \\((6a^4 - 6) - (3a^2 - 5)\\)
- \\((8 - 7p^2) + (8p^2 + 7)\\)
- \\((5p + 2p^3) - (5p^3 + 5p^2)\\)
- \\((3 + 8a) - (6a + 2)\\)
Calcular raíces cuadradas exactas
Para las preguntas 1 y 2, calculamos el valor exacto:
- \(\sqrt{16} = 4\)
- \(\sqrt{100} = 10\)
Estimar raíces cuadradas al entero más cercano
Para las preguntas 3 a 6, aproximamos y redondeamos:
- \(-\sqrt{46} \approx -6.78
ightarrow -7\)
- \(-\sqrt{83} \approx -9.11
ightarrow -9\)
- \(-\sqrt{100} = -10\)
- \(\sqrt{123} \approx 11.09
ightarrow 11\)
Simplificar y multiplicar expresiones algebraicas
Agrupamos términos semejantes o distribuimos según corresponda:
- \((5b^2 + 3) + (5 + 7b^2) = 12b^2 + 8\)
- \((3x^2 - x^3) + (8x^2 - 7x^3) = -8x^3 + 11x^2\)
- \((7 + 3x) - (2 - 6x) = 9x + 5\)
- \((5 + 4n^3) + (2n^3 + 2) = 6n^3 + 7\)
- \(3r^2(3r + 3) = 9r^3 + 9r^2\)
- \(6(7x - 5) = 42x - 30\)
- \(5(3r + 3) = 15r + 15\)
- \(8p^3(8p - 1) = 64p^4 - 8p^3\)
- \((6a^4 - 6) - (3a^2 - 5) = 6a^4 - 3a^2 - 1\)
- \((8 - 7p^2) + (8p^2 + 7) = p^2 + 15\)
- \((5p + 2p^3) - (5p^3 + 5p^2) = -3p^3 - 5p^2 + 5p\)
- \((3 + 8a) - (6a + 2) = 2a + 1\)
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| No. | Respuesta |
|---|---|
| 2 | \(10\) |
| 3 | \(-7\) |
| 4 | \(-9\) |
| 5 | \(-10\) |
| 6 | \(11\) |
| 7 | \(12b^2 + 8\) |
| 8 | \(-8x^3 + 11x^2\) |
| 9 | \(9x + 5\) |
| 10 | \(6n^3 + 7\) |
| 11 | \(9r^3 + 9r^2\) |
| 12 | \(42x - 30\) |
| 13 | \(15r + 15\) |
| 14 | \(64p^4 - 8p^3\) |
| 15 | \(6a^4 - 3a^2 - 1\) |
| 16 | \(p^2 + 15\) |
| 17 | \(-3p^3 - 5p^2 + 5p\) |
| 18 | \(2a + 1\) |