Question

3(2m-5) 5(9+x) 2а(6а3-3) 5х+ 6х2+6х+4х2

Answer 1

3(2m-5)=3• 2m-3•5=6m-15

5(9+x)=5•9+5x=45+5x

2а(6а•3-3)=2a•(18a-3)=36a²-6a

5х+ 6х•2+6х+4х•2=5х+12х+6х+8х=31х

Answer 2

It looks like you've provided several mathematical expressions. Let's simplify each of them:

1. 3(2m-5): Distribute the 3 to both terms inside the parentheses: 3 * 2m - 3 * 5 = 6m - 15

2. 5(9+x): Distribute the 5 to both terms inside the parentheses: 5 * 9 + 5 * x = 45 + 5x

3. 2a(6a^3-3): Distribute the 2a to both terms inside the parentheses: 2a * 6a^3 - 2a * 3 = 12a^4 - 6a

4. 5x + 6x^2 + 6x + 4x^2: Combine like terms: (5x + 6x) + (6x^2 + 4x^2) = 11x + 10x^2

So, the simplified expressions are:

1. 6m - 15
2. 45 + 5x
3. 12a^4 - 6a
4. 11x + 10x^2