PLEASE HELP ISTG DI KOTO KAYA

MULTIPLE CHOICE: Write the letter of the correct answer before each number,
1. What is the standard form of 2x + 4 = 5x2 - 6x?
A. 5x2 - 6x + 4 = 0
C. 5x2 - 8x - 4 = 0
B. -5x2 +8x = -4
D. 5x2 + 6x-4 = 0
2. Which of the following is/are quadratic equation/s in one variable?
i. A=s²
ii. b3 - 8 = 0
iii. c2 - 10c + 25 = 0
A. i only
B. i and ii
C. i and iii
D. ii and iii
3. Which are the roots of the equation x2 = 144?
A. +12 and +12
B.-12 and -12
B. +12 and -12
D. 24 and 6
4. What are the roots of x2 + 10x + 9 = 0?
A. 3,-3
B. 9, 1 C.-9, 1 D. -9, -1
5. Find the quadratic equation whose roots are 6, -6?
A. x2 + 36 = 0
C. x2 - 6x + 36 = 0
B. x2 - 36 = 0
D. x2 + 6x + 36 = 0
6. Which of the following is not a perfect square trinomial?
A. x2 - 6x + 9
C. x2 + 5x + 6
B. x2 + 8x + 16
D. x2 – 10x + 25
7. What is the product of a and cin the equation x2 - 10x + 25 = 0?
A. - 36
B. - 24 C. 25
D. 36
8. What are the roots of x2 - 5x – 14 = 0?
A. -7,-2
B. -7,2 C. 7, -2 D. 7,2
9. What is the value of b in 4s2 - 9 = 12s?
A. -12
B.4
C. 12
D. 49
10. Solve: x2 + 14 = -9x
A. -7,-2
B. -7,2
C. 7,-2
D. 7,2
11. What must be added to both sides of the equation 2x2 + 8x + 5 = 0 to make the left side a perfect
square trinomial?
A. -16
B. -8
C. 8
D. 16
12. What is the sum of the roots of the equation x2 – 2x = 15?
A. -8
B.-2.
C. 2
D. 8
13. What is the standard form of (2x + 4)2 + (x - 5)2 = 15
A. 5x2 + 6x + 26 = 0
C. 6x2 + 5x + 26 = 0
B. x2 + 5x + 6 = 0
D. 5x2 + 6x + 6 = 0
14. Which will lead to the solutions of the equation 3x2 + 4x = (x - 7)2
A.
-18+182 - 4(49)(2)
C.
-21 22 – 4(18)(-49)
2(2)
2(18)
В.
- 18+ /182 - 4(2)(-49)
D.
-(-49)(-49)2 - 4(18)(2)
2(2)
2(18)
15. The length of a rectangular garden is 5 m longer than its width. The area of the rectangular garden is
84 m2. What equation represents the area of the rectangular garden?
A. 5x = 84 B. x(x + 5) = 84 C. x(x + 5) = 84 D. 5x(x + 5) = 84