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ICSE Class 10 Answered

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Asked by Farheen1447 | 12 May, 2019, 12:57: PM
Expert Answer
3 to the power of 2 straight x squared end exponent minus 2.3 to the power of straight x squared plus straight x plus 6 end exponent plus 3 to the power of 2 open parentheses straight x plus 6 close parentheses end exponent equals 0
rightwards double arrow 3 to the power of 2 straight x squared end exponent plus 3 to the power of 2 open parentheses straight x plus 6 close parentheses end exponent equals 2.3 to the power of straight x squared plus straight x plus 6 end exponent
rightwards double arrow 3 to the power of 2 straight x squared end exponent over 3 to the power of straight x squared plus straight x plus 6 end exponent plus 3 to the power of 2 open parentheses straight x plus 6 close parentheses end exponent over 3 to the power of straight x squared plus straight x plus 6 end exponent equals 2
rightwards double arrow 3 to the power of 2 straight x squared minus straight x squared minus straight x minus 6 end exponent plus 3 to the power of 2 straight x plus 12 minus straight x squared minus straight x minus 6 end exponent equals 2
rightwards double arrow 3 to the power of straight x squared minus straight x minus 6 end exponent plus 3 to the power of negative straight x squared plus straight x plus 6 end exponent equals 2
rightwards double arrow 3 to the power of straight x squared minus straight x minus 6 end exponent plus 1 over 3 to the power of straight x squared minus straight x minus 6 end exponent equals 2
here space straight x squared minus straight x minus 6 equals 0 comma space otherwise space LHS thin space won apostrophe straight t space be space equal space to space RHS
straight x squared minus straight x minus 6 equals 0
open parentheses straight x minus 3 close parentheses open parentheses straight x plus 2 close parentheses equals 0
straight x equals 3 space or space straight x equals negative 2
Answered by Arun | 12 May, 2019, 09:29: PM
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