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Homework Solutions 1)c 2 – 26c – 56 = 0 (c – 28)(c + 2) = 0 {-2, 28} 2)n 2 + 4n – 32 = 0 (n + 8)(n – 4) = 0 {-8, 4} 3)h 2 + 2h – 35 = 0 (h + 7)(h – 5) = 0 {-7, 5}

Homework Solutions 4)(x – 2)(x + 7) = 22 x 2 + 5x – 14 = 22 x 2 + 5x – 36 = 0 (x + 9)(x – 4) = 0 {-9, 4} 5)(x + 3)(x + 4) = 30 x 2 + 7x + 12 = 30 x 2 + 7x – 18 = 0 (x + 9)(x – 2) = 0 {-9, 2}

Homework Solutions 6)x 2 = 5x + 24 x 2 – 5x – 24 = 0 (x – 8)(x + 3) = 0 {-3, 8} 7)n 2 – 15 = 2x n 2 – 2x – 15 = 0 (n – 5)(n + 3) = 0 {-3, 5} 8)c 2 = c + 72 c 2 – c – 72 = 0 (c – 9)(c + 8) = 0 {-8, 9}

7.When the square of a number is decreased by 9 times the number, the result is 36. Find the numbers.

8.A certain number added to its square is 30. Find the numbers.

9.The square of a number is equal to the sum of 4 times the number and 21. Find the numbers.

1.The square of a number is 35 more than 3 times the number. Find the numbers.

2.The sum of a number and its square is 30. Find the numbers.

3.The area of a rectangle is 40 cm 2. If the length of the rectangle is three more than the width, find the dimensions of the rectangle.

4.The area of a rectangle is 42 in 2. If the width of the rectangle is one less than the length, find the dimensions of the rectangle.

5.If the triangle has an area of 40 cm 2, find the height, h, of the triangle. h 2h + 6

Homework Homework 2/12 Worksheet Extra Help: Wednesday