Упростите выражения. Срочно!!!! Хотя бы одно.......... Created by evaasp. algebra-ru

Упростите выражения. Срочно!!!! Хотя бы одно...

Universalka

Verified answer

1) 3x⁵y³ * 0,25x²y⁵ = 3 * 0,25 * x⁵⁺² * y³⁺⁵ = 0,75x⁷y⁸

2) (8a - 14b) + (4a - 2b) - (10a - 12b) = 8a - 14b + 4a - 2b - 10a + 12b =

= 2a - 4b

3) (b - 5)(2b + 3) + 17 = 2b² + 3b - 10b - 15 + 17 = 2b² - 7b + 2

4) (y - 3x)² + (3y + x)² = y² - 6xy + 9x² + 9y² + 6xy + x² =

= 10x² + 10y²

2 votes Thanks 1

SilverGravity

Ответ:

$1) 3x^5y^3*0,25x^2y^5=3*0,25*x^5^+^2*y^3^+^5=0,75x^7y^8\\\\2) (8a - 14b) + (4a - 2b) - (10a - 12b) = 8a - 14b + 4a - 2b - 10a + 12b =2a - 4b\\\\3) (b - 5)(2b + 3) + 17 = 2b^2 + 3b - 10b - 15 + 17 = 2b^2 - 7b + 2\\\\4) ) (y - 3x)^2 + (3y + x)^2 = y^2 - 6xy + 9x^2 + 9y^2 + 6xy + x^2 = 10x^2 + 10y^2$

2 votes Thanks 1

Answers & Comments

Verified answer

73 72

2 1 3 15

1 2 32

10 63b871f02d002

m 1 3 b 2 5 63b0d132b7881

m 1 3 b 2 5

kakoe neravenstvo izobrazheno na risunke s obyasneniem

raznost dvuh chisel ravna 17 a ih summa ravna 9 najdite chisla9c6837501ea3f86690ad1479a9015bc1 74716

reshite sistemu neravenstv721a9e8b0fa7bee4244618773b60452e 9562

raznost dvuh chisel ravna 17 a ih summa ravna 9 najdite chisla

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