3Y & # 178; + 1 = 2 √ 3Y to solve the equation

3Y & # 178; + 1 = 2 √ 3Y to solve the equation

3y²＋1=2√3y
Square of (√ 3Y) = 1
3y-1=0
y=√3/3
The solution of equation 4x = 5x is______ .
4X = 5x, & nbsp; 4x-4x = 5x-4x, & nbsp; & nbsp; & nbsp; & nbsp; 0 = x, so & nbsp; X = 0
1 [3 + a] 2 power = 2 [1 / 3 x + 3Y] 2 power = 3 [x-2y] square = 4 [1 / 2-3a] 2 power = 5, [- 2A + 4A] 2 power=
Power [- x-3y]
There is no multiplication sign in the front. 1-5 are numbers
1、 9 + 6A + a square
2、 1 / 9x square + 2XY + 9y square
3、 X square - 4xy + 4Y square
4、 1 / 4-4 / 3A + 9A square
5、 4A square
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Solve the equation 2 - (1 / 3Y) = 2 / 3Y & # 178;
2 - (1 / 3Y) = 2 / 3Y & # 178; the above formula is 2-1 / (3Y) = 2 / (3Y & # 178;) 2 / (3Y & # 178;) + 1 / (3Y) - 2 = 0 times Y & # 178; 2 / 3 + y / 3-2y & # 178; = 0 2Y & # 178; - Y / 3-2 / 3 = 0 6y & # 178; - Y-2 = 0 (2Y + 1) (3y-2) = 0 Y1 = - 1 / 2 y2 = 2 / 3
Is it (1 / 3) * y or 1 / (3Y)?? And then the next one is the square of 2 / 3 * y?? Ask: 2 minus 1 / 3 y = 2 / 3 y square
How to solve the equation that the square of 5x minus the square of 4x minus 88 equals 0
5x^2-4x^2=88
x^2=88
x=±√88=±2√22
(3a ^ 2b) ^ - 2 (a ^ - 3B ^ - 2) ^ - 1 (4x ^ 2Y ^ - 3) divided by (1 / 2x ^ 2Y ^ 3)
（3a^2b)^-2(a^-3b^-2)^-1
=(1/9)a^(-4) *b^(-2) *a^3 *b^2
=(1/9)a^(-1)
=1/(9a)
.
(4x ^ 2Y ^ - 3) divided by (1 / 2x ^ 2Y ^ 3)
=8y^(-6)
If x-2y = 4, then 2-3 / 2 x + 3Y =? (factorization)
If x-2y = 4, then
2-3 / 2 x + 3Y
=2-3/2(x-2y)
=2-3/2×4
=2-6
=-4;
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What is the value of a if the solution of the equation x equals two parts x-a + A and X + three parts 4x-a equals two parts x minus three are the same
x=(x-a)/2+a
2x=x-a+2a
X=a
So 11x = 11a
x+(4x-a)/3=x/2-3
6x+8x-2a=3x-18
11x=2a-18
So 11a = 2a-18
9a=-18
a=-2
Equation (1): x = 1 / 2x-a + A
x=1/2x
X=0
Equation (2): x + 4 / 3x-a = 1 / 2x-3. According to the meaning of the problem, the solutions of the two equations are the same. Therefore, substituting x = 0 into (2) gives a = - 3
x=(x-a)/2+a
(4x-a)/(x+3)=x/2-3
Two formulas are obtained simultaneously
Is 4x-a of X + 3 x + (4x-a) / 3 or (4x-a) / (x + 3)
Simplify (2x-3y) - 3 (4x-2y) a - (2a + b) + 2 (a-2b) 2 (x-3y) - 3 (4x-2y)
(2x-3y)-3(4x-2y)=2x-3y-12x+6y=-10x+3y
a-(2a+b)+2(a-2b) =a-2a-b+2a-4b=a-5b
2(x-3y)-3(4x-2y)=2x-6y-12x+6y=-10x
Factorization of 81 (x + 2Y) ^ 2-9 (x-3y) ^ 2
81 (x + 2Y) ^ 2-9 (x-3y) ^ 2 = [9 (x + 2Y)] ^ 2 - [3 (x-3y)] ^ 2 -- product power = [9 (x + 2Y) + 3 (x-3y)] [9 (x + 2Y) - 3 (x-3y)] -- square difference formula = (9x + 18y + 3x-9y) (9x + 18y-3x + 9y) - -- remove bracket = (12x + 9y) (6x + 27y) --- merge similar terms = 3 (4x + 3Y) --
81(x+2y)^2-9(x-3y)^2
=[9(x+2y)]^2-[3(x-3y)]^2
=[9(x+2y)-3(x-3y)][9(x+2y)+3(x-3y)]
=(6x+27y)(12x+9y)
=9(2x+9y)(4x+3y).
Factorization of 81 (x + 2Y) ^ 2-9 (x-3y) ^ 2
=[9(x+2y)+3(x-3y)][9(x+2y)-3(x-3y)]
=9*(4x-3y)(2x+9y)
81(x+2y)^2-9(x-3y)^2
=9[9(x+2y)^2-(x-3y)^2]
=9[(3x+6y)^2-(x-3y)^2]
=9(3x+6y+x-3y)(3x+6y-x+3y)
=9(4x+3y)(2x+9y)