Respuesta :
Answer:
x=2 and -2
Step-by-step explanation:
f(x)=2x^2-8
set the function equal to zero to solve for x
2x^2-8=0
add 8 to both sides and divide by 2
x^2=4
take the square root of both sides to get x isolated
√(x^2)=√4
x= ±2
Answer:
x=2 and -2
Step-by-step explanation:
f(x)=2x^2-8
set the function equal to zero to solve for x
2x^2-8=0
add 8 to both sides and divide by 2
x^2=4
take the square root of both sides to get x isolated
√(x^2)=√4
x= ±2
