Question

........................................

Answer 1

`\\ \sf\longmapsto (x-11)^2=72`

`\\ \sf\longmapsto x-11=√(72)`

`\\ \sf\longmapsto x-11=\pm 8.48`

`\\ \sf\longmapsto x=11-8.48\:or\:11+8.48`

`\\ \sf\longmapsto x\approx 2.52\:or\:19.48(Approximate)`

`\\ \sf\longmapsto x=3\:or\:19(Exact)`

Answer 2

Explanation:

• (x - 11)² = 72
• x - 11 = ± √72
• x = 11 ± √72

The exact solutions are: x = 11 + √72 and x = 11 - √72

The approximate solutions are: x = 19.49 and x = 2.51