Question

Oblicz :
4a(5b-a) -4 (2a² - 2ab) =
(6x³ + 4xy) - 2(3x+3+4xy - 1/2x) =
2y(-3x+6y)+3y(2y² - y) =
-3a (-6a -2b)-(3a+6b)=
4c-(3c+2) -10c =
-4(3x-6) - 3(2+7x) =

Potrzebne szybko!!!

Answer 1

1) 20ab-4a^2 -8a^2+8ab=28ab-12a^2
2)6x^3+4xy - 6x - 6- 8xy+x=6x^3 - 4xy - 5x -6
3) 2y(-3x+6y)+3y(2y² - y) =-6xy +12y^2+ 6y^3-3y^2= 6y^3+ 9y^2- 6xy
4)18a^2 +6ab- 3a -6b
5) 4c-3c-2 -10c=-9c-2
6)-12x+24 -6-21x= 18 -33x

Answer 2

4a(5b - a) - 4(2a² - 2ab) = 20ab - 4a² - 8a² + 8ab = -12a² + 28ab

(6x³ + 4xy) - 2(3x + 3 + 4xy - 1/2x) = 6x³ + 4xy - 6x - 6 - 8xy  + x =
= 6x³ - 4xy -5x - 6

2y(-3x + 6y) + 3y(2y² - y) = -6xy + 12y² + 6y³ - 3y² = 6y³ + 9y² - 6xy

-3a(-6a - 2b) - (3a + 6b) = 18a² + 6ab - 3a - 6b

4c - (3c + 2) - 10c = 4c - 3c - 2 - 10c = -9c - 2

-4(3x - 6) - 3(2 + 7x) = -12x + 24 - 6 - 21x = -33x + 18