Question

Anyone please help me.
Solve the given quadratic equations by factoring.​

Answer 1

Explanation:

Q1:

2x² - 5x - 3 = 0.

=> (2x + 1)(x - 3) = 0

=> x = -0.5 or x = 3.

Q2:

3x² + x - 2 = 0.

=> (3x - 2)(x + 1) = 0

=> x = 2/3 or x = -1.

Q3:

x² + 4x = 21.

=> x² + 4x - 21 = 0

=> (x + 7)(x - 3) = 0

=> x = -7 or x = 3.

Q4:

x² - 12 = 24.

=> x² = 36

=> x = ±6.

Q5:

x² - 18x = 0.

=> x(x - 18) = 0

=> x = 0 or x = 18.