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Chapter 8: Q. 8.128 (page 976)

Solve :

y-14y2+3y-4=2y+4+7y-1.

Short Answer

Expert verified

y=-5.

Step by step solution

01

Step 1. Given information.

To solvey-14y2+3y-4=2y+4+7y-1.

02

Step 2. Solve using LCD.

We get

y-14y2+3y-4=2y+4+7y-1;y鈮�1,-4y-14(y+4)(y-1)=2y+4+7y-1

Take LCD and multiply it to both sides.

(y-1)(y+4)[y-14(y+4)(y-1)]=[2y+4+7y-1](y-1)(y+4)y-14=2(y-1)+7(y+4)y-14=2y-2+7y+28y-14=9y+260=8y+408y+40=08y=-40y=-5

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