cm74usap2j62s
cm74usap2j62s cm74usap2j62s
  • 20-12-2018
  • Mathematics
contestada

Help please help please

Help please help please class=

Respuesta :

JK94 JK94
  • 20-12-2018

Answer:

Base = 17

Height = 5

Step-by-step explanation:

(4x + 1)(x + 1) = 85

4x² + 4x + x + 1 = 85

4x² + 5x - 84 = 0

∆ = 5² - 4.4.(- 84)

∆ = 25 + 1344

∆ = 1369

x = (- 5 + 37)/8

x = 32/8

x = 4


Base = 4.4 + 1 = 17

Height = 4 + 1 = 5


I hope I helped you.

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