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ICSE Class 10 Answered

<div>solve for 'x' if&nbsp;<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=69c71ab248779e3f16e42cb1168486a7.png" alt="open square brackets x space 3 space 1 close square brackets" align="middle" />&nbsp;<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=1fe5fea407d21c6ac4e1fb0dbfce2b91.png" alt="open square brackets table row 2 1 0 row 1 0 2 row 0 2 1 end table close square brackets" align="middle" />&nbsp;<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=4f1645cf0d5c6c156b979a496e6b6d84.png" alt="open square brackets table row x row 3 row cell negative 2 end cell end table close square brackets" align="middle" />=0</div>
Asked by savi1405 | 28 Apr, 2016, 05:07: PM
Expert Answer
begin mathsize 12px style open square brackets table row straight x 3 1 end table close square brackets open square brackets table row 2 1 0 row 1 0 2 row 0 2 1 end table close square brackets open square brackets table row straight x row 3 row cell negative 2 end cell end table close square brackets equals 0
rightwards double arrow open square brackets table row cell 2 straight x plus 3 plus 0 end cell cell space space straight x plus 0 plus 2 end cell cell space space space 0 plus 6 plus 1 end cell end table close square brackets open square brackets table row straight x row 3 row cell negative 2 end cell end table close square brackets equals 0
rightwards double arrow open square brackets table row cell 2 straight x plus 3 end cell cell space space straight x plus 2 end cell cell space space 7 end cell end table close square brackets open square brackets table row straight x row 3 row cell negative 2 end cell end table close square brackets equals 0
rightwards double arrow open square brackets table row cell straight x left parenthesis 2 straight x plus 3 right parenthesis plus space 3 left parenthesis straight x plus 2 right parenthesis space plus 7 left parenthesis negative 2 right parenthesis end cell end table close square brackets equals 0
rightwards double arrow 2 straight x squared plus 3 straight x plus 3 straight x plus 6 minus 14 equals 0
rightwards double arrow 2 straight x squared plus 6 straight x minus 8 equals 0
rightwards double arrow straight x squared plus 3 straight x minus 4 equals 0
rightwards double arrow left parenthesis straight x plus 4 right parenthesis left parenthesis straight x minus 1 right parenthesis equals 0
rightwards double arrow straight x equals negative 4 space space space space o r space straight x equals 1 end style
Answered by Rebecca Fernandes | 29 Apr, 2016, 08:43: AM

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