Question

− 8 x 2 ( 5 x + 8 ) ( 6 x 2 + 5 )

Answer 1

1.6х2+5=12х+5=17х;

2.5х+8=13х

3.-8х2=-16х

4.-16х*13х=-208х

5.-208х*17х=-3536х

Answer 2

To simplify the expression, you can follow the order of operations (PEMDAS/BODMAS):

P: Parentheses E: Exponents MD: Multiplication and Division (left to right) AS: Addition and Subtraction (left to right)

The given expression is:

-8x^2(5x + 8)(6x^2 + 5)

Let's start by applying the distributive property to the first two terms within the parentheses:

-8x^2(5x + 8) = -40x^3 - 64x^2

Now, we have:

-40x^3 - 64x^2 (6x^2 + 5)

Next, we can apply the distributive property again to the remaining terms:

-40x^3(6x^2) - 40x^3(5) - 64x^2(6x^2) - 64x^2(5)

Simplify each term:

-240x^5 - 200x^3 - 384x^4 - 320x^2

Finally, combine like terms if possible:

-240x^5 - 384x^4 - 200x^3 - 320x^2

So, the simplified expression is:

-240x^5 - 384x^4 - 200x^3 - 320x^2.