1)11x²-6x-27=8x²-6x 2)26+5y-0.5y²=2.5y²+26 3)-7x²+13x+9=-19+13x 4)21z+11=11+17z-...

August 2022 1 6 Report

1)11x²-6x-27=8x²-6x
2)26+5y-0.5y²=2.5y²+26
3)-7x²+13x+9=-19+13x
4)21z+11=11+17z-5z²СРОЧНООО КАК МОЖНО БЫСТРЕЙ
С РЕШЕНИЕМ

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Alexаndr

Verified answer

$11x^2-6x-27=8x^2-6x\\3x^2=27\\x^2=9\\x=^+_-3$

$26+5y-0,5y^2=2,5y^2+26\\3y^2-5y=0\\y(3y-5)=0\\y=0\ ;y=\frac{5}{3}$

$-7x^2+13x+9=-19+13x\\7x^2=28\\x^2=4\\x=^+_-2$

$21z+11=11+17z-5z^2\\5z^2+4z=0\\z=0\ ;z=-\frac{4}{5}$

1 votes Thanks 3

551002450129 НА 4 ОТВЕТ -4ПЯТЫХ,0

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551002450129 ЧТО ВЫКЛЮЧИТЬ

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551002450129 August 2021 | 0 Ответы

1 3x 1x220 2 x 44x 330 3 x 3x4 x 517x24 4 x5b3e41c8d8c06bbbf3e53a707a78ad363 54339

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Answers & Comments

Verified answer

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111x 6x 278x 6x 2265y 05y25y26 3 7x13x9 1913x 421z111117z

11x 6x 278x 6x 2265y 05y25y26 3 7x13x9 1913x 421z111117z 5

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1 3x 1x220 2 x 44x 330 3 x 3x4 x 517x24 4 x5b3e41c8d8c06bbbf3e53a707a78ad363 54339

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