tizitayazew16 tizitayazew16

22-01-2022
Mathematics

contestada

solve by using factorizing method:4x²-36x+81=0

Respuesta :

mhanifa mhanifa

22-01-2022

Answer:

x = 4.5

Step-by-step explanation:

4x² - 36x + 81 = 0
(2x)² - 2*2x*9 + 9² = 0 Identity a² - 2ab + b² = (a - b)²
(2x - 9)² = 0
2x - 9 = 0
2x = 9
x = 4.5

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