Math

4b^2 +8b+7=4 Solve

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4b^2 +8b+7=4

4b^2 +8b+7-4=4-4

4b^2 +8b+3=0

(2b )(2b ) ( +1)( +3)=0

(2 b+1) (2 b+3) = 0

Solve:

(2 b+1) =0

2 b+1-1 =0-1

2b=-1

2b/2=-1/2

b=-1/2

Solve:

(2 b+3) = 0

2 b+3-3 = 0-3

2b=-3

2b/2=-3/2

b=-3/2

It's 0