16x( 2 - x )+(4x - 5)² = 0

Question

16x( 2 - x )+(4x - 5)² = 0

Answer 1

32х-16х²+16х²-40х+25=0 32х-40х+25=0 -8х+25=0 -8х=-25 х=25\8

Comments

огромное спасибо

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а ты где живёш

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(5+2y)(y-3)-2(y-1)²=0

Answer 2

32x-16x^2+16x^2-40x+25=0
32x-40x+25=0
-8x=-25
x= 25/8
x= 3 1/8

Comments

(5+2y)(y-3)-2(y-1)²=0

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5y-15+2y^2-6y-2*(y^2-2y+1)=0; -y-15

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упс сейчас допишу

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-y -15 + 2y^2 - 2y^2 + 4 - 2=0; 3y-17=0; y= 17/3 y=5 2/3