Question

Solve x2=78
by inspection. Select the two correct answers.(1 point)
Responses

x=74
x is equal to 7 to the 4th power

x=−72
x is equal to negative 7 squared

x=3.54
x is equal to 3 point 5 to the 4th power

x=−74
x is equal to negative 7 to the 4th power

x=72

Answer 1

The equation is x^2 = 7^8, so x = ±√(7^8) = ±7^4.
Select: "x is equal to 7 to the 4th power" and "x is equal to negative 7 to the 4th power."