Math, asked by shahidnadaf8125, 9 months ago

plz give me mcq worksheet of quadratic equations with ans

Answers

Answered by payalarora790
3

Answer:

. If one of the root of a quadratic equation with rational coefficients is rational, then other root must be

(a) Imaginary

(b) Irrational

(c) Rational

(d) None of these

2. If two roots of quadratic equation ax2 + bx + c = 0 are a, b, then the roots of the quadratic equation ax2 – bx + c = 0 are given by

(a)

(b) –a, –b

(c)

(d) None of these

3. In the quadratic equation (2a – 3)x2 + ax + a – 5 = 0, the value of a can never be

(a) 3/2

(b) 0

(c) 5

(d) None of these

4. The quadratic equation whose roots are –2 and 4 is given by

(a) x2 – 2x – 8 = 0

(b) x2 – 2x + 8 = 0

(c) x2 + 2x + 8 = 0

(d) None of these

5. If p, q be two positive numbers, then the number of real roots of quadratic equation px2 + q|x| + 5 = 0 is

(a) 1

(b) 0

© 2

(d) 4

6. If p and q are roots of the quadratic equation x2 + mx + m2 + a = 0, then the value of p2 + q2 + pq is

(a) 0

(b) a

(c) –a

(d) ± m2

7. The number of real roots of the equation |x|2 – 3|x| + 2 = 0 is

(a) 4

(b) 3

(c) 2

(d) 1

8. The diagram shows the graph of y = ax2 + bx + c, then

(a) a > 0

(b) b < 0

(c) c > 0

(d) b2 – 4ac = 0

9. The equation whose roots are 1 and 0, is

(a) x2 – 2x + 1 = 0

(b) x2 – 1= 0

(c) x2– x = 0

(d) None of these

10. One root of px2 – 14x + 8 = 0 is six times the other then p is

(a) 0

(b) 3

(c) 1/3

(d) 1

11. Roots of the equation (x – a)(x – b) = h2 are

(a) Real and equal

(b) Real and unequal

(c) Imaginary

(d) None of these

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