Math

4x^2 -18x - 10 = 0 Solve for x

Asked by AnneS2 on 17 May 05:14

Last updated by anonymous on 19 May 11:03

1 Answers

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Answered by CherieS on 19 May 11:03

4x^2 -18x - 10 = 0

2(2x^2-9x-5)

2(x )(2x ) ( -5)( +1)=0

2 (x-5) (2 x+1) = 0

Solve:

2 (x-5)=0

(2)(x) (2)(-5)=0

2x-10=0

2x-10+10=0+10

2x=10

2x/2=10/2

x=5

Solve:

2(2 x+1) = 0

(2)(2x) (2)(+1)=0

4x+1=0

4x+1-1=0-1

4x=-1

4x/4=-1/4

x=-1/4