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Chapter 7: Q. 316 (page 893)

In the following exercises, solve.

(y-11)(y+1)=0

Short Answer

Expert verified

The solution isy=11,-1.

Step by step solution

01

Step 1. Given Information.

The given equation is(y-11)(y+1)=0

02

Step 2. Solution of the equation.

Using the Zero Product property,

(y-11)(y+1)=0y-11=0Therefore,y=11Also,y+1=0y=-1

03

Step 3. Check the solution,

On substituting y=11,

(11-11)(y+1)=0(0)(y+1)=00=0

which is true.

Now, substitute y=-1,

(y-11)(-1+1)=0(y-11)(0)=00=0

which is true.

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