Question

(d+6)(-d-6)+6(2d-1) при d=8​

Answer 1

Ответ:

-106

Объяснение:

(d+6)(-d-6)+6(2d-1) при d=8​

-$-d^{2} -6d -6d -36 + 12d -6 = -d^{2} -12d -36 + 12d -6 = -d^{2} - 42 = \\64 - 42 =-106$

Answer 2

Ответ:

Смотри решение на фото

Answer 3

To evaluate the expression (d+6)(-d-6)+6(2d-1) when d = 8, you can substitute the value of d into the expression and then perform the arithmetic. Here's how you do it:

(d+6)(-d-6) + 6(2d-1) when d = 8

= (8+6)(-8-6) + 6(2*8-1)

= (14)(-14) + 6(16-1)

Now, calculate each part of the expression:

= -196 + 6(15)

= -196 + 90

Now, add the two terms:

= -196 + 90

= -106

So, when d = 8, the expression (d+6)(-d-6)+6(2d-1) equals -106.