Question

Solve (x - 3)² = 5 Give your solutions correct to 3 significant figures.

Answer 1

Answer:

$\sqrt{5} +3, -\sqrt{5} + 3$ or 5.236, 0.764

Step-by-step explanation:

Answer 2

Answer:

x=5.24   x=0.764

Step-by-step explanation:

(x - 3)² = 5

Take the square root of each side

sqrt((x - 3)²) = sqrt(5)

x-3 = ±sqrt(5)

Add 3 to each side

x-3+3 = 3±sqrt(5)

x = 3±sqrt(5)

x = 3+sqrt(5)     x = 3-sqrt(5)

x=5.23606      x=0.76393

To 3 significant figures

x=5.24   x=0.764