silvanarosales silvanarosales

11-12-2019
Mathematics

contestada

Use substitution to write an equivalent quadratic equitation (3x+2)2 +7(3x+2) -8 =0

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jonathanking21 jonathanking21

11-12-2019

Answer:(3x)2+(2)2+7(3x)+7(2)-8=0

6x+4+21x+14-8

27x+10=0

27x -10 -10

27x=-10

x=2.7

Step-by-step explanation:

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