Answer:
44
Step-by-step explanation:
The equation is of the form a
x
²+bx +c = 0 where
a = 5, b= -2, c= -2
The Discriminant is given by:
Δ=
b²−
4 * a * c
= (−2²)− (
4 * 5 * (
− 2
)
)
= 4
+ 40
= 44
Answer:
#3. 
Explanation:
Pythagorean theorem: leg² + leg² = hypotenuse²
Integers
99, 43, -31, 81, -202, -3
the rest numbers I didn't mention is not integer