Question

Can anyone help me please

Answer 1

a) x = 9 b) x = 10

Explanation:

a)

6² + (x - 1)² = (x + 1)²

36 + x² - 2x + 1 = x² + 2x + 1

36 = 4x

x = 9

b)

x² + (x + 14)² = 26²

x² + x² + 28x + 196 = 676

2x² + 28x = 480

2x² + 28x - 480 = 0

x² + 14x - 240 = 0

(x + 24)(x - 10) = 0

x = -24 or 10

Answer 2

a. 41.5

b, 26.5

Explanation:

a.

2x + 6 = 180

2x = 172

x = 86

b.

2x+ 90 +26+11 = 180

2x+127 = 180

2x = 53

x = 26.5