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### Practice Set 2.2 Quadratic Equations Class 10th Mathematics Part 1 MHB Solution

Practice Set 2.2
1. x^2 - 15x + 54 = 0 Solve the following quadratic equation by factorization.…
2. x^2 + x - 20 = 0 Solve the following quadratic equation by factorization.…
3. Solve the following quadratic equation by factorization. 2y^2 + 27y + 13 = 0…
4. 5m^2 = 22m + 15 Solve the following quadratic equation by factorization.…
5. 2x^2 - 2x + 1/2 = 0 Solve the following quadratic equation by factorization.…
6. 6x - 2/x = 1 Solve the following quadratic equation by factorization.…
7. root 2x^2 + 7x+5 root 2 = 0 to solve this quadratic equation by factorization,…
8. 3x^2 - 2 root 6x+2 = 0 Solve the following quadratic equation by factorization.…
9. 2m (m-24) = 50 Solve the following quadratic equation by factorization.…
10. 25m^2 = 9 Solve the following quadratic equation by factorization.…
11. 7m^2 = 21m Solve the following quadratic equation by factorization.…
12. m^2 - 11 = 0 Solve the following quadratic equation by factorization.…
###### Practice Set 2.2
Question 1.

Solve the following quadratic equation by factorization.

x2 – 15x + 54 = 0

⇒

⇒

⇒

Hence, are roots of the equation.

Question 2.

Solve the following quadratic equation by factorization.

x2 + x – 20 = 0

⇒

⇒

⇒

Hence, are roots of the equation.

Question 3.

Solve the following quadratic equation by factorization.
2y2 + 27y + 13 = 0

⇒  = 0

⇒

⇒ (2y + 1) (y + 13) = 0

13

Hence, are roots of the equation.

Question 4.

Solve the following quadratic equation by factorization.

5m2 = 22m + 15

⇒

⇒

⇒

⇒

∴ Hence, are roots of the equation.

Question 5.

Solve the following quadratic equation by factorization.

⇒

⇒

Question 6.

Solve the following quadratic equation by factorization.

⇒

⇒

Hence, are roots of the equation.

Question 7.

Solve the following quadratic equation by factorization.

to solve this quadratic equation by factorization, complete the following activity.

∴

Question 8.

Solve the following quadratic equation by factorization.

⇒

⇒

⇒

⇒

Question 9.

Solve the following quadratic equation by factorization.

2m (m-24) = 50

⇒

⇒

⇒

⇒

⇒

Hence, are roots of the equation.

Question 10.

Solve the following quadratic equation by factorization.

25m2 = 9

⇒

⇒

⇒

Hence,  are roots of the equation.

Question 11.

Solve the following quadratic equation by factorization.

7m2 = 21m

⇒

⇒

⇒

Hence,  are roots of the equation.

Question 12.

Solve the following quadratic equation by factorization.

m2 - 11 = 0

⇒

⇒

⇒

Hence , m = ±11 are roots of the equation.