Question

What is the answer of Question no. 4

Answer 1

Answer:

(b) x^2-4=0

is the right answer

plz mark as btainliest

Answer 2

Answer:

Let the roots of an quadratic be m, n

thus the quadratic is x^2 - (m+n)x + mn=0

If m=2, and m + n =0

⇒n=-2

thus mn= 2*(-2) = -4

Thus the quadratic equation becomes :

x^2 -0x + (-4) =0

≡ X^2 -4 =0