Problem

the correct answer on your answer sheet only the lem
1. Which of the following equations are quadratic?
a. $3m+8=15$ $6-2x+3x^{2}$ =0
b. $25+3t=-7$ d. x+ y=C
2. Solve the quadratic equation by extracting square roots 7-40
a. 12 b. ±3 C14 d. 25
3. What is value of g in the equation of $3x-2x^{2}=n$
a. 3 b.7 C -7 d.2
4. Which of the following equations cannot bo solved by edracting squaro root?
$x^{2}=9/16$ $0.$ $bx^{2}-7=0$ c.37
5. What are the roots of the $au0θ+$ equations x- $=18$ $d.x-81=0$ $-3x-10=0$ $a.10and1$
a. 2 and 5 $b-2and5$ $c-10and1$
6. Which of the following quadratic equations may be solved more appropriately by
$0eonn97$ $2x^{2}=7^{2}$ $b.w^{2}-64=0$ $cP+12+36=0$ $dx^{2}+2x=0$ $lcim0es9y$
a.
7. Find the solutions of the equation
a. (3,6) $ionx^{2}+3x-18=0by$ $c\left(3,18\right)$ $d\left(0.3\right)$ completing square.
8. Find the solutions completing the square.
$b.\left(1.3\right)$ $nsctn0$ $b.\left(1.3\right)$ equation x - $2x=3by$ $d.\left(0$
a. (3.-1) c. (-3, (0,3)
9. Find the solutions of the equation $2x^{2}+3x=27$ using the quadratic formula.
a. 3 and - 9/2 b. 2 and 3 c 5 and 27 d. 2 and 9
10. What is the discriminant of the equation x+ 5x = 47
a. - 9/2 b3 c.5 d. 9
11. What is the nature of roots of the quadratic equation if the value of ts discriminant
negative?
roots are not real. c. tthhe e roots are roots irrational and not equal
a. TThhe e are rational and not equal d. roots are rational and equal
b.
12. Determine the nature of roots of the quadratic equation x + 6x +3 = 0.
a. TThhe e roots are not arned al. not equal d. c tthhe e roots are roota irrational and nof aqual
are rational roots are rational and equal

10th-13th grade

Algebra

Search count: 106

Solution

Qanda teacher - Riya

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$2$ Which of the following is the nature of the roots of the quadratic
equation if the value of its discriminant is zero?
a. The roots are not real.
b. The roots are irrational and not equal.
c. The roots are rational and not equal.
$a$ The roots are rational and equal.

7th-9th grade

Other

Search count: 113