Question

Plz help me get the right answer

Answer 1

4x²+24x-28

Explanation:

to understand this

you need to know about:

• PEMDAS
• algebra

tips and formulas:

• (a-b)²=a²-2ab+b²

let's solve:

`{8x}^(2) + x - (2x - 6) ^(2)`

`step - 2 : simplify`

1. use (a-b)²=a²-2ab+b² to expand the expression:
   `\tt {8x}^(2) + 8 - (4 {x}^(2) - 24x + 36)`
2. 
   `\tt remove \: parentheses \: and \: the \: signs : \\ \tt{8x}^(2) + 8 - 4 {x}^(2) + 24x - 36`
3. 
   `\tt \: collect \: and \: combine \: like \: terms : \\ \tt{4x}^(2) + 24x - 28`