Question

-3a^2-(-2a+4a^3+5b)=
(2a-b)+(3a^2-4b^2)=
(3x+y)-(-4x^2+5y^2)=
-2a+(-3b+5c-7d)=
-3a^2-(5a-7b+9b^2)=
(2a-3x)+(-13a+5x)=
-(5,2x-y)+(3,2x-4y)=
(-3x^2+6x+1)-(-2x^2+3x-1)=
-(5a^2-10a+12)-(3a^2+10a-7)=
(-2a+13b)+(2a-13b)=
(1,2a-3,4b)+(-3,2a+0,66)=
Упростите выражение пожалуйста

Answer 1

1)$- 3 {a}^{2} + 2a - 4 {a}^{3} - 5b$

2)

$2a - b + 3 {a}^{2} -4 {b}^{2}$

3)

$3x + y + 4 {x}^{2} - 5 {y}^{2}$

4)

$- 2a - 3b + 5c - 7d$

5)

$- 3 {a}^{2} - 5a + 7b - 9 {b}^{2}$

6)

$2a - 3x - 13a + 5x = - 11a + 2x$

7)

$- 5.2x + y + 3.2x - 4y = - 3y - 2$

8)

$- 3 {x}^{2} + 6x + 1 + 2 {x}^{2} - 3x + 1 = - {x}^{2} + 3x + 2$

9)

$- 5 {a}^{2} + 10a - 12 - 3 {a}^{2} - 10a + 7 = - 8 {a}^{2} - 5$

10)

$- 2a + 13b + 2a - 13b = 0$

11)

$1.2a - 3.4b - 3.2a + 0.66 = - 2a - 3.4b + 0.66$