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Published byGodwin Greene Modified over 9 years ago
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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}
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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}
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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}
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7.When the square of a number is decreased by 9 times the number, the result is 36. Find the numbers.
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8.A certain number added to its square is 30. Find the numbers.
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9.The square of a number is equal to the sum of 4 times the number and 21. Find the numbers.
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1.The square of a number is 35 more than 3 times the number. Find the numbers.
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2.The sum of a number and its square is 30. Find the numbers.
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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.
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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.
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5.If the triangle has an area of 40 cm 2, find the height, h, of the triangle. h 2h + 6
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Homework Homework 2/12 Worksheet Extra Help: Wednesday
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