Question

9а2+48аb+64b2\ 3a+8b. a=4 b=1​

Answer 1

Ответ в приложенном фото)

Answer 2

Ответ:20

Объяснение:

9а2+48аb+64b2\ 3a+8b= (3a+8b)^2/3a+8b= 3a+8b (сокращается)

3*4+8*1=12+8=20

Answer 3

To evaluate the expression 9a^2 + 48ab + 64b^2 / 3a + 8b, we can substitute the given values of a = 4 and b = 1 into the expression.

Replacing a with 4 and b with 1, we get:

9(4)^2 + 48(4)(1) + 64(1)^2 / 3(4) + 8(1)

Simplifying each term:

= 9(16) + 48(4) + 64(1) / 12 + 8 = 144 + 192 + 64 / 12 + 8 = 400 / 20 = 20

Therefore, when a = 4 and b = 1, the value of the expression 9a^2 + 48ab + 64b^2 / 3a + 8b is 20.