Math

15a^2 -3a=3-7a Solve

Asked by AnneS2 on 15 May 05:29

Last updated by anonymous on 16 May 12:05

1 Answers

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Answered by CherieS on 16 May 12:05

15a^2 -3a=3-7a

15a^2 -3a+7a=3-7a+7a

15a^2+4a=3

15a^2+4a-3=3-3

15a^2+4a-3==0

(3a )(5a ) ( -1)( +3)

(3 a-1) (5 a+3) = 0

Solve:

(3 a-1)=0

3a-1+1=0+1

3a=1

3a/3=1/3

a=1/3

Solve:

(5 a+3) = 0

5a+3-3=0-3

5a=-3

5a/5=-3/5

a=-3/5