Question

What are the solution(s) to the quadratic equation 40 - x2 = 0?
x= +2/10
x = +4/10
+2/5
x = 4/5

Answer 1

Answer:

X= $2\sqrt{10}$

Step-by-step explanation:

$40-x^{2}$=0

40=$x^{2}$

x=$\sqrt{40\\}$

$\left \{ {{x=+\sqrt{40} } \atop {x=-\sqrt{40} }} \right.$