Question

Ayudaaaaa porfas es para hoy

Answer 1

g) x² + 5x = 0

x = -5 ± √5² - 4 (1) / 2 × 1

x = -5 ± √25 - 4 /2

x = -5 ± √21/2

x1 = -7.291

x2 = -2.709

h) 4x² + 12x = 0

x = -12 ± √12² - 4 (4) / 2 × 4

x = -12 ± √144 - 16 / 8

x = -12 ± √128/8

x1 = -13.414

x2 = -10.585

o) 2x² + 5x = 0

x = -5 ± √5² - 4 (2) / 2 × 2

x = -5 ± √25 - 8 / 4

x = -5 ± √17/4

x1 = -6.030

x2 = -3.969

p) x² + 4 = 5x + 4

x² + 4 - 5x - 4 = 0

x² - 5x = 0

x = -(-5) ± √(-5)² - 4 (-5) / 2 × 1

x = 5 ± √25 - (-20)/2

x = 5 ± √25 + 20/2

x = 5 ± √45/2

x1 = 8.354

x2 = 1.646

q) 3x² - 6x = 0

x = -(-6) ± √(-6)² - 4 (3) / 2 × 3

x = 6 ± √36 - 12 /6

x = 6 ± √24/6

x1 = 6.816

x2 = 5.183

r) 5x + x = 3x + 15

5x + x - 3x = 15

3x = 15

x = 15/3

x = 5

Espero haberte ayudado. Suerte en los estudios ≧◠◡◠≦.