nobodylol72 nobodylol72

05-04-2021
Mathematics

contestada

What are the solution(s) to the quadratic equation 40 - x2 = 0?
O x = +2/10
O x = +4/10
O x = +2/5
x = +4V5

Respuesta :

paladins paladins

05-04-2021

Answer:

±2sqrt(10)

Step-by-step explanation:

40 - x^2 = 0

Add x^2 to each side

40 -x^2 + x^2 = x^2

40 =x^2

Take the square root of each side

±sqrt(40) =sqrt(x^2)

±sqrt(4)sqrt(10) =x

±2sqrt(10) =x

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