Question

Solution of quadratic equation x^2-3x-10=0 is
-5,2
5,-2
3,10
-3,-10​

Answer 1

Answer:

5,-2 is the correct answer

Step-by-step explanation:

you can verify it by putting the value

Answer 2

EXPLANATION.

Quadratic equation.

⇒ x² - 3x - 10 = 0.

As we know that,

Factorizes the equation into middle term splits, we get.

⇒ x² - 5x + 2x - 10 = 0.

⇒ x(x - 5) + 2(x - 5) = 0.

⇒ (x + 2)(x - 5) = 0.

⇒ x = - 2  and  x = 5.

Option [B] is correct answer.

                                                                                                                       

MORE INFORMATION.

Conjugate roots.

(1) = If D < 0.

One roots = α + iβ.

Other roots = α - iβ.

(2) = If D > 0.

One roots = α + √β.

Other roots = α - √β.