Question

1) 2х( – 5х3 + 3);2) (y+ 2)(3y - 5);​

Answer 1

Ответ:

1) 2x( -5x3 + 3) = -10x4 + 6x

2) ( y+2) (3y-5) = 3y2 - 5y + 6y - 10= 3y2 + y - 10

Answer 2

Let's simplify the given expressions step by step:

1. 2x(-5x^3 + 3)

To simplify this expression, we'll use the distributive property of multiplication over addition/subtraction:

2x * (-5x^3) + 2x * 3

Simplifying further:

-10x^4 + 6x

So, the simplified expression is -10x^4 + 6x.

2. (y + 2)(3y - 5)

To simplify this expression, we'll again use the distributive property:

(y * 3y) + (y * -5) + (2 * 3y) + (2 * -5)

Simplifying further:

3y^2 - 5y + 6y - 10

Combining like terms:

3y^2 + y - 10

So, the simplified expression is 3y^2 + y - 10.