6. What is the sum of the roots of the quadratic equation 8x² + 5x - 14 = 0? A. – ⅝
B. – 5/14
C. 5
D. 14
7. which of the following is the quadratic transformation of the equation: 2x-1/x+1 = x+1/x-1?
A. x²-5x = 0
B. x² + 5x = 0
C. x² - 5x +1 = 0
8. the sum of two numbers is 9 and their product is 20. what are the numbers?
a. 2 and 7
b. 4 and 5
c. 3 and 6
d. 1 and 8
9. the length of a rectangle is 2 m less than twice the width. if the area of the rectangle is 112 m², what is the width?
a. 5 m
b. m
c. 9 m
d. 14 m
10. which of the following mathematical statements is a quadratic inequality?
A. 5t² – 3r – 20 = 0
B. 4x² + 9x – 2 > 0
C. 9h + 18 < 0
D. m² + 9m + 16 = 0
B. – 5/14
C. 5
D. 14
7. which of the following is the quadratic transformation of the equation: 2x-1/x+1 = x+1/x-1?
A. x²-5x = 0
B. x² + 5x = 0
C. x² - 5x +1 = 0
8. the sum of two numbers is 9 and their product is 20. what are the numbers?
a. 2 and 7
b. 4 and 5
c. 3 and 6
d. 1 and 8
9. the length of a rectangle is 2 m less than twice the width. if the area of the rectangle is 112 m², what is the width?
a. 5 m
b. m
c. 9 m
d. 14 m
10. which of the following mathematical statements is a quadratic inequality?
A. 5t² – 3r – 20 = 0
B. 4x² + 9x – 2 > 0
C. 9h + 18 < 0
D. m² + 9m + 16 = 0
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