1) 2(х-3)=5х-9
2х-6= 5х-9
2х-5х= -9+6
-3х= -3
х=1
2) 4-5(1-2х)=1-6х
4-5+10х=1-6х
10х+6х=1-4+5
16х=0
х=0
-2х+3=5
-2х=5-3
-2х=2
х=2:2
х=1
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0,6х=-5,4
х=-5,4-0,6х
х=-4,8
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4х+7=3
4х=3-7
4х=-4
х=-4:4
х=-1
____
5х-11=34
5х=34+11
5х=45
х=45:5
х=9
1. x²-6x+9 = (x-3)².
2. 16-9y² = (4-3y)(4+3y).
3. 4x²+4x+1 = (2x+1)².
4. 36m⁴-25n² = (6m²-5n)(6m²+5n).
<span>5. a⁴-16 = (a</span>²-4)(a²+4) = (a-2)(a+2)(a²+4).
X²-2x=x(x-2)
x²-25=(x-5)(x+5)
a²b+b²=b(a²+b)
64a²-25b²=(8a-5b)(8a+5b)
36x²-36x+9=(6x-3)²
x³-3x²y+3xy²-y3=(x-y)³
x³+b³=(x+b)(x²-xb+b²)