Question

(8−a)2−a(a−28) при a=−3,2.​

Answer 1

Ответ:

-31,84

Объяснение:

(8-3,2)•2-3,2•(3,2-28)=4,8•2-10,24-31,2=-31,84

Answer 2

Ответ:

64-16а+а^2-а^2+28а=64+12а=64+12×(-3,2)=64-38,4=

=25,6

Объяснение:

а^2-а^2=0

-16а+28=12

Answer 3

To evaluate the expression (8 - a)^2 - a(a - 28) when a is equal to -3 and 2, you can substitute these values into the expression and calculate the result.

1. For a = -3: (8 - (-3))^2 - (-3)(-3 - 28) (8 + 3)^2 - (-3)(-31) 11^2 - (-3)(-31) 121 - 93 28

2. For a = 2: (8 - 2)^2 - 2(2 - 28) (8 - 2)^2 - 2(-26) 6^2 - (-52) 36 + 52 88

So, when a is -3, the result is 28, and when a is 2, the result is 88.