The roots of a quadratic equation are 5 and - 2. Then, the equation is
The roots of a quadratic equation will satisfy the equation - start with option 1
A. x2 - 3x + 10 = 0
For x = 5
52 - (3.5) + 10
25 - 15 + 10 = 20 ≠ 0
Hence this is not the equation
B. x2 - 3x - 10 = 0
For x = 5
52 - (3.5) - 10 = 25 - 15 - 10
= 25 - 25 = 0
For x = - 2
= ( - 2)2 - (3. - 2) - 10
= 4 + 6 - 10 = 10 - 10 = 0
This equation is satisfied for both the roots.