1. 5y² + 10 =
5(y² + 2)
2. 16x² - 12x =
4x(4x + 3)
3. 18b³ - 30b² =
6b²(3b - 5)
4. b² - 49 =
(b + 7)(b - 7)
5. c² - 25 =
(c + 5)(c - 5)
6. y² - 81 =
(y + 9)(y - 9)
7. a² + 8a + 12 =
(a + 2)(a + 6)
8. x² + 8x + 15 =
(x + 3)(x + 5)
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Answers & Comments
Factor the following polynomials completely.
1. 5y² + 10 =
5(y² + 2)
2. 16x² - 12x =
4x(4x + 3)
3. 18b³ - 30b² =
6b²(3b - 5)
4. b² - 49 =
(b + 7)(b - 7)
5. c² - 25 =
(c + 5)(c - 5)
6. y² - 81 =
(y + 9)(y - 9)
7. a² + 8a + 12 =
(a + 2)(a + 6)
8. x² + 8x + 15 =
(x + 3)(x + 5)