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Learning Module for Junior High School Mathematics 6. Which situation illustrates quadratic equation? A. The length of a rectangular board is 3m longer than its width and its perimeter is 25m B. Joey paid at least P2,000 for the shirt and pants. The cost of pants is P700 more than the shirt, C. A garden's length in 7m longer that its width and the area is 18 square meters. D. A lot cost P4,000 per square meter and the area is 120 square meters 7. If (x + 2) A. 7 3(x + 2) is written in standard form, the value of bis B. 5 C. 3 D. 1 8. When the quadratic equation (2x + 5) (x - 1) = -6 is written in standard form, what are the values of a, b, and c? A. a = -2.b = 3,c** 1 C. a 2,6 -3,0 = 1 B. a 2. b 3, c=1 D. a - -2,5-3,0 = 1 9. The dimensions of a rectangle with an area of 56 meters are (3x - 1) meters by (x +4) meters. Which of the following quadratic equation in standard form represents the situation? (3x-1)(x+4) A. 3x2 + 11x -60 - 0 C. 3x2 + 11x - 52 - 0 B. 3x2 + 11x + 600 D. 3x2 + 11x + 52 - 0 10. When 7 - 5x = 3x" was written in standard form, Ana and Elsa got the following answers: Ana: 3x2 + 5x - 7 = 0 Elsa: -3x2 - 6x + 70. Who do you think got the correct answer? A. Ana B. Elsa C. Both D. None
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