marianesabrinap20 marianesabrinap20

12-09-2021
Mathematics

contestada

help me with this plsss 40 pointsss

help me with this plsss 40 pointsss class=

Respuesta :

surjithayer10otahza surjithayer10otahza

12-09-2021

Answer:

Step-by-step explanation:

x(3x+2)=16

3x²+2x-16=0

3x²+8x-6x-16=0

x(3x+8)-2(3x+8)=0

(3x+8)(x-2)=0

either 3x+8=0

x=-8/3(rejected as width can't be negative)

x-2=0

x=2

so width=2

length=3×2+2=6+2=8

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