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CBSE Class 10 Answered

f(x)=6x2-3-7x
Asked by minati789 | 04 May, 2019, 06:57: AM
answered-by-expert Expert Answer
straight f left parenthesis straight x right parenthesis equals 6 straight x squared minus 7 straight x minus 3
6 straight x squared minus 7 straight x minus 3 equals 0
6 straight x squared minus 9 straight x plus 2 straight x minus 3 equals 0
3 straight x open parentheses 2 straight x minus 3 close parentheses plus 1 open parentheses 2 straight x minus 3 close parentheses equals 0
open parentheses 3 straight x plus 1 close parentheses open parentheses 2 straight x minus 3 close parentheses equals 0
straight x equals fraction numerator negative 1 over denominator 3 end fraction space or space 3 over 2
Answered by Arun | 04 May, 2019, 09:32: AM
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