Question

Solve using the square root method. Round the solution to the nearest tenth. x2 - 20 = 0
A. {-10.0, 10.0}
B. {-5.5, 5.5}
C. {-3.5, 3.5}
D. {-4.5, 4.5}

Answer 1

well rewrite so x&^2 = 20
take square root of both sides. the solution is + or - the answer