ariannamacias0086 ariannamacias0086

23-12-2020
Mathematics

contestada

3x²-30x+9=0
PLEASE HELP
COMPLETING THE SQUARE WILL MARK BRAINLIEST

Respuesta :

23-12-2020

Answer:

i have done the cutting of x's exponent

Step-by-step explanation:

= 3x - 30+9 =0

= 3x - 21 =0

= 3x= 21

= x = 21/3

x= 7 this the answer

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