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19 March, 20:12

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

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  1. 19 March, 20:32
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    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
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