Factoring Binomials and Trinomials

Which of the following is the complete factorization?

• (x-2)(x-10)

• (x-1)(x+20)

• (x+5)(x+4)

• (x-5)(x+4)

Factor
a² - a - 12

• (a - 4)(a + 3)

• (a + 6)(a - 4)

• (a - 6)(a + 4)

• (a + 4)(a - 3)

4x² - 25

• (2x + 5) (2x - 5)

• (2x - 5)²

• (2x + 5)²

• 2x + 5(2x - 5)

Factor: x² + 24x + 144

• (x + 12)²

• (x + 9)²

• (x + 15)²

• (x + 13)²

Factor: x² - 4x + 4

• (x + 2)²

• (x - 2)²

• (x + 4)²

• (x - 4)²

Factor: m² - 81

• (m + 9)(m + 9)

• (m - 9)(m - 9)

• (m + 9)(m - 9)

• (m + 9)²

Factor:  a² - 50

• (a + 25)(a - 25)

• (a - 5)²

• (a - 25)²

• correct answer not given

Factor:
 n² + 10n + 25

• (n + 5)(n - 5)

• (n + 25)(n + 1)

• (n - 5)²

• (n + 5)²

Factor:
 x² - 15x + 50

• (x - 10)(x - 15)

• (x - 10)(x - 5)

• (x - 25)²

• (x - 5)²

Factor:
x² + 7x - 30

• (x + 10)(x - 7)

• (x - 10)(x + 3)

• (x + 10)(x + 3)

• (x + 10)(x - 3)