Harry solved a quadratic equation. His work is shown below. In which step did Harry make an error? (x-5)^2+6=42

Question

asked Oct 21, 2021 79.7k views

2 Answers

Eldon · Answer 1 · 2021-10-24T06:46:07+0000

Answer:

X = 11, - 1

Explanation:

Given (x-5)^2 +6 = 42

Subtract 6 from sides

(x-5)^2 = 36

take the square root of both sides

X - 5 = +/- 6

X = 11, - 1.

Harry did not solve for X.