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НикитаКирилленко
@НикитаКирилленко
August 2022
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rpephxlk
1.
a) (y-5)^2=y^2-10y+25
б) (4x-3)^2=16x^2-24x+9
в) (4x-7)(4x+7)=16x^2+28x-28x-49=16x^2-49
г) (a^2+8)(a^2-8)=a^4-8a^2+8a^2-64=a^2-64
2.
a. c^2-0,49=(c-0.7)(c+0.7)
б. x^2-10x+25= (x-5)^2
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Answers & Comments
a) (y-5)^2=y^2-10y+25
б) (4x-3)^2=16x^2-24x+9
в) (4x-7)(4x+7)=16x^2+28x-28x-49=16x^2-49
г) (a^2+8)(a^2-8)=a^4-8a^2+8a^2-64=a^2-64
2.
a. c^2-0,49=(c-0.7)(c+0.7)
б. x^2-10x+25= (x-5)^2