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ICSE Class 9 Answered

(3a- 2)^2 +4 (3a - 2) -96

 

Asked by alexdiwas14 | 20 Feb, 2021, 02:27: AM
Expert Answer
L e t space 3 a minus 2 space b e space x
open parentheses space 3 a minus 2 close parentheses squared plus 4 space open parentheses 3 a minus 2 close parentheses minus 96 equals 0
x squared plus 4 x minus 96 equals 0
x squared plus 12 x minus 8 x minus 96 equals 0
x left parenthesis x plus 12 right parenthesis minus 8 left parenthesis x plus 12 right parenthesis equals 0
left parenthesis x plus 12 right parenthesis left parenthesis x minus 8 right parenthesis equals 0
x equals 8 comma x equals negative 12
3 a minus 2 equals 8
a equals 3
x equals negative 12
3 a minus 2 equals negative 12
a equals negative 10 divided by 3
Answered by Utkarsh Lokhande | 22 Feb, 2021, 10:55: PM

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