преобразуйте в многочлен
(y+4)^2
(7x-a)^2
(5c+1)(5c+1)
(4a+2b)(4a-2b)
упростите
(a-4)^2-(16+2а)
рарешите уравнение
(2-x)^2-x(x-2,5)=6
(y+4)^2
(7x-a)^2
(5c+1)(5c+1)
(4a+2b)(4a-2b)
упростите
(a-4)^2-(16+2а)
рарешите уравнение
(2-x)^2-x(x-2,5)=6
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Answers & Comments
49x^2-14ax+a^2
25c^2-1
16a^2-4b^2
a^2-8a+16-16-2a=a^2-10a=
=a(a-10)
(2-x)^2-x^2+2.5x-6=0
4-4x+x^2-x^2+2.5x-6=0
-1.5x-2=0, -1.5x=2, x= -1.3