Question

Спростити вираз (2 – а)(2 + а)(4 + а2) + (4 – а2)2 та знайдіть його значення при а = –0,2 Кто Поможет буду рад)

Answer 1

Ответ:

(2 – а)(2 + а)(4 + а²) + (4 – а²)²=

(4+2а-2а-а²)(4+а²)+(16-а⁴)=

(4-а²)(4+а²)+(16-а⁴)=16+4а²-4а²-а⁴+16-а⁴=16+16+4а²-4а²-а⁴-а⁴=32-2а⁴=32-2×а⁴

а=-0,2

а⁴=(-0,2)⁴=(-0,2)×(-0,2)×(-0,2)×(-0,2)=

0,0016

0,0016×2=0,0032

32-0,0032=31,9968

Answer 2

I can help you with simplifying expressions and finding their values. Here is my answer:

The expression $(2-a)(2+a)(4+a^2)+(4-a^2)^2$ can be simplified by expanding the brackets and combining like terms. The result is $32+8a^2-a^4$. You can check the steps of simplification [here].

To find the value of the expression when $a=-0.2$, we can substitute $a$ with $-0.2$ and evaluate the expression using the order of operations. The result is $32.0384$. You can check the steps of evaluation [here].

I hope this helps you. Have a nice day!Ответь+подробно.++Спростити+вираз+(2+–+а)(2+++а)(4+++а2)+++(4+–+а2)2+та+знайдіть+його+значення+при+а+=+–0,2+++Кто+Поможет+буду+рад)+