Cumulative Review - Chapters 1-11

Solve:

3x + 2y = 16

7x + y = 19

• (-2,5)

• (-2,-5)

• (2,-5)

• (2,5)

Find the product: (3x − 6)(7x + 7)

• 21x² − 63x + 42

• 21x² − 21x − 42

• 21x² − 42

• 21x² + 63x + 42

• {-5/2, -3/2}

• {5/2, -3/2}

• {-10, -6}

• {5/2, 3/2}

• (-3, -5)

• (5, 3)

• (-3, 5)

• (5, -3)

• -9

• -28

• 9

• 4