Question

Xsquare -3x-10=0 find the discriminent​

Answer 1

Answer:

49

Step-by-step explanation:

D=b^2-4ac

=(-3)^2-4(1)(-10)

=9+40

=49

Answer 2

$x^2-3x-10=0\\a=1\\b=-3\\c=-10\\D=\sqrt{b^2-4ac}\\ D=\sqrt{(-3)^2-4*1*(-10)}\\ D=\sqrt{9+40}\\ D=\sqrt{49}$

Hence, D = ± 7 .