X^2 = 49 / : V
x = 7 i x= - 7
x^2 = 10 /:V
x = V10 i x = - V10
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Тут типа должен быть текст
2х^2-3х+1=0
D=b^2-4ac= (-3)^2-4*2*1=9-8=1
x1=3+1/4= 4/4=1
x2=3-1/4=2/4=0,5
1) b(c-b) +d(c-b) = (c-b) * ( b+d)
2) (x-y)²+b(x-y)² = (x-y)<span>² * (1+b)
3) (y-x)</span><span>²+b(y-x)= (y-x) * (y-x+b)
4)a(x-5)</span>² -b(x-5)² = (x-5)<span>² * (a-b)
5) a(5-x)</span><span>²-b(5-x)=(5-x) * (5a - ax -b)
6) a(b+2) * (1+ a)
7) 3y(x-7) - y</span><span>²(x-7) = y(x-7) * (3-y)
8)a</span><span>²(a-b) + a (a-b) = a(a-b) * (a + 1)
9) 36ax(2x-a) -9(2x-a)= 9(2x-a) * (4ax -1)
10) (a-5b) * ( 5a + a + 3b )= (a-5b) *(6a+3b)= 3(a-5b) * (2a+b)</span>