document.write( "Question 949097: (t/t+1)^2-(t/t+1)-12=0 \n" ); document.write( "

Algebra.Com's Answer #579389 by MathTherapy(10552) $\"\"$ $\"About$

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\n" ); document.write( "(t/t+1)^2-(t/t+1)-12=0
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document.write( "Let a = 
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document.write( "Then  becomes: 
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document.write( "(a - 4)(a + 3) = 0
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document.write( "a - 4 = 0           OR           a + 3 = 0
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document.write( "a = 4               OR           a = - 3\r
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document.write( " ------- Substituting 4 for a
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document.write( "4(t + 1) = t ------ Cross-multiplying
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document.write( "4t + 4 = t
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document.write( "4t - t = - 4
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document.write( "3t = - 4
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document.write( " ------- Substituting - 3 for a
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document.write( "- 3(t + 1) = t ----- Cross-multiplying
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document.write( "- 3t - 3 = t
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document.write( "- 3t - t = 3
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document.write( "- 4t = 3
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