Question

(-8a+9b)*(-4a+8b)+(8a+3b)*(-a+8b)​

Answer 1

Ответ:

все на листе...................

Answer 2

To simplify the given expression, you can use the distributive property (also known as the FOIL method) to expand the products and then combine like terms. Let's break it down step by step:

The given expression is: (-8a+9b)(-4a+8b) + (8a+3b)(-a+8b)

1. Expand the first product: (-8a+9b)*(-4a+8b) = -8a * -4a + (-8a) * 8b + 9b * -4a + 9b * 8b = 32a^2 - 64ab - 36ab + 72b^2 = 32a^2 - 100ab + 72b^2

2. Expand the second product: (8a+3b)*(-a+8b) = 8a * -a + 8a * 8b + 3b * -a + 3b * 8b = -8a^2 + 64ab - 3ab + 24b^2 = -8a^2 + 61ab + 24b^2

3. Combine the two expanded expressions: (-8a+9b)(-4a+8b) + (8a+3b)(-a+8b) = 32a^2 - 100ab + 72b^2 + (-8a^2 + 61ab + 24b^2) = 32a^2 - 8a^2 - 100ab + 61ab + 72b^2 + 24b^2 = 24a^2 - 39ab + 96b^2

So, the simplified expression is 24a^2 - 39ab + 96b^2.