Prerequisites

Question 1

1.5 Example 1: Factor 6x^3y^3 + 45x^2y^2 + 21xy.

Answer 1

(3xy) (2x^2y^2 + 15xy + 7) (p.70)

Question 2

1.5 Example 3: Factor 5x^2 + 7x - 6.

Answer 2

(5x - 3) (x + 2) (p.72)

Question 3

1.5 Example 4: Factor 25x^2 + 20x + 4.

Answer 3

(5x + 2)^2 (p.73)

Question 4

1.5 Example 5: Factor 9x^2 - 25.

Answer 4

(3x + 5) (3x - 5) (p.74)

Question 5

1.5 Example 6: Factor x^3 + 512.

Answer 5

(x + 8) (x^2 - 8x + 64) (p.75)

Question 6

1.5 Example 7: Factor 8x^3 - 125.

Answer 6

(2x - 5) (4x^2 + 10x + 25) (p.75)

Question 7

1.5 Example 8: Factor Equation 1.51.

Answer 7

(x + 2)^-1/3 (7x + 8) (p.76)