solve the following equation
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What could be easier than this.
Put ((3x-1)/(2x+3))² = a
The equation becomes,
a² - 5a + 4 = 0
a² - 4a - a +4 = 0
a (a-4) -1 (a-4) = 0
(a-1)(a-4) = 0
a = 1 or 4
Substituting original value for `a`
________________
((3x-1)/(2x+3))² = 1
((3x-1)/(2x+3)) = ± 1
________________
Case 1, ((3x-1)/(2x+3)) = 1
Step 1: Multiply both sides by 2x+3.
3x−1=2x+3
3x−1−2x=2x+3−2x(Subtract 2x from both sides)
x−1=3
x−1+1=3+1(Add 1 to both sides)
x=4
_______________
Case 2, ((3x-1)/(2x+3)) = -1
=> x = -2/5
_______________
((3x-1)/(2x+3))² = 4
((3x-1)/(2x+3)) = ±2
___________________
Case 1, ((3x-1)/(2x+3)) = 2
Step 1: Multiply both sides by 2x+3.
3x−1=4x+6
3x−1−4x=4x+6−4x(Subtract 4x from both sides)
−x−1=6
−x−1+1=6+1(Add 1 to both sides)
−x=7 (Divide both sides by -1)
x=−7
____________________
Case 2, ((3x-1)/(2x+3)) = -2
Step 1: Multiply both sides by 2x+3.
3x−1=−4x−6
3x−1+4x=−4x−6+4x (Add 4x to both sides)
7x−1=−6
7x−1+1=−6+1(Add 1 to both sides)
7x=−5
x = -5/7
Put ((3x-1)/(2x+3))² = a
The equation becomes,
a² - 5a + 4 = 0
a² - 4a - a +4 = 0
a (a-4) -1 (a-4) = 0
(a-1)(a-4) = 0
a = 1 or 4
Substituting original value for `a`
________________
((3x-1)/(2x+3))² = 1
((3x-1)/(2x+3)) = ± 1
________________
Case 1, ((3x-1)/(2x+3)) = 1
Step 1: Multiply both sides by 2x+3.
3x−1=2x+3
3x−1−2x=2x+3−2x(Subtract 2x from both sides)
x−1=3
x−1+1=3+1(Add 1 to both sides)
x=4
_______________
Case 2, ((3x-1)/(2x+3)) = -1
=> x = -2/5
_______________
((3x-1)/(2x+3))² = 4
((3x-1)/(2x+3)) = ±2
___________________
Case 1, ((3x-1)/(2x+3)) = 2
Step 1: Multiply both sides by 2x+3.
3x−1=4x+6
3x−1−4x=4x+6−4x(Subtract 4x from both sides)
−x−1=6
−x−1+1=6+1(Add 1 to both sides)
−x=7 (Divide both sides by -1)
x=−7
____________________
Case 2, ((3x-1)/(2x+3)) = -2
Step 1: Multiply both sides by 2x+3.
3x−1=−4x−6
3x−1+4x=−4x−6+4x (Add 4x to both sides)
7x−1=−6
7x−1+1=−6+1(Add 1 to both sides)
7x=−5
x = -5/7
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