3 - sq(6 - 5x) = 2/3x + 4?

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3 - sq(6 - 5x) = 2/3x + 4?

helpp plzzz

2007-10-21 18:02:26 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

2 answers

3 - sq(6 - 5x) = 2/3x + 4

3 - 2/3x - 4=sq(6 - 5x)
(-1-2/3 x)^2=6-5x

PS:
x <= 6/5

2007-10-21 18:09:19 · answer #1 · answered by iyiogrenci 6 · 0⤊ 0⤋

3 - sqrt(6-5x) = 2/3x + 4

x = -15

First restrict your domain:
6-5x>=0
x<=6/5

3*sqrt(6-5x) = -2x - 3
9(6-5x) = 4x^2 + 12x + 9
0=4x^2+57x-45
0=(4x-3)(x+15)

Be careful, x is not 3/4.
x= -15

2007-10-21 18:33:02 · answer #2 · answered by Peter 2 · 0⤊ 0⤋