Math

25x^2 -36 = 0 solve by factoring

Asked by AnneS2 on 01 Apr 05:04

Last updated by anonymous on 03 Apr 18:19

1 Answers

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Answered by CherieS on 03 Apr 18:19

25x^2 -36 = 0

(5x )(5x ) ( -6)( +6)

(5x-6)(5x+6)=0

Check:

(5x-6)(5x+6)

(5x)(5x) (5x)(6) (-6)(5x) (-6)(6)

25x^2 +30x -30x -36

25x^2 -36

Simplify:

(5x-6)=0

Solve:

(5x-6)=0

5x-6+6=0+6

5x=6

5x/5=6/5

x=6/5

Simplify:

(5x+6)=0

Solve:

(5x+6)=0

5x+6-6=0-6

5x=-6

5x/5=-6/5

x=-6/5