Unit 8 Review

Solve the Simultaneous Equations:

-2x + 5y - 9 = 0

3y - 2x - 3 = 0

• (3, 3)

• (2, 1)

• (3, 5)

• How do you do this?

Solve the Simultaneous Equations:

y = x + 3

3y + x = 5

• (1, 1)

• (-1, 2)

• (-2, 2)

• (4, 3)

(x-7)(x+3)

• x²-3x-21

• x²+4x-21

• x²-4x+21

• x²-4x-21

Expand
(4n - 5)(2n + 5)

• 8n² + 10n - 25
• 56n² + 4n - 16
• 7n² + 27n - 4
• 56n² - 16

Tags

CCSS.HSA.APR.A.1

Expand and simplify the following quadratic expression...

(x + 7)²

• x² + 49

• x² + 14x + 49

• x² + 49x + 14

• x² + 7x + 49

Expand (x + 5)(x - 3)

• x² - 15
• x² + 2x 
• x² + 15x - 15
• x² + 2x - 15

(x - 6)(x - 2)

• x^2 + 4x + 12
• x^2 + 12
• x^2 - 12
• x^2 - 8x + 12

(x-3)(x+11)

• x² + 30x - 14

• x² + 14x + 30

• x² + 8x - 33

• 3x² + 11x + 33

A landscaping company placed two orders with a nursery. The first order was for 13 bushes and 4 trees, and totalled $487. The second order was for 6 bushes and 2 trees, and totalled $232. The bills do not list the per-item price. What were the costs of one bush and of one tree?

• bushes: $23 each, trees: $47 each

• bushes: $47 each, trees: $23 each

• bushes: $32 each, trees: $74 each

• bushes: $2 each, trees: $4 each

Solve: 2x - 3y = -30 and 3x - 2y = -35

• (-9, 4)

• (4, -9)

• (2, -4)

• (-18, 8)