Question

The discriminant of the Quadratic Equation x^2 - 7x+ 10 = 0 is 9 *​

Answer 1

Answer:

Explanation:

X^2 +7x +10 =0

b^2 - 4ac = (7)^2 - 4(1) (10)

= 49 - 40

= 9

Square root of discriminant

Root 9 = 3

So, our final answer is 3

Answer 2

You can solve any quadratic equation by completing the square—rewriting part of the equation as a perfect square trinomial. If you complete the square on the generic equation ax2 + bx + c = 0 and then solve for x, you find that . This equation is known as the Quadratic Formula.

This formula is very helpful for solving quadratic equations that are difficult or impossible to factor, and using it can be faster than completing the square. The Quadratic Formula can be used to solve any quadratic equation of the form ax2 + bx + c = 0.