Question

simplify -a+[b-{-a(a-b+a)}]​

Answer 1

Answer:

a=1/2 or a=b

I tried my level best

Answer 2

Given :

- a + [ b- { - a ( a - b + a ) } ]

Solution :

➵ - a + [ b- { - a ( a - b + a ) } ]

➵ - a + [ b - { - a² + ab - a² } ]

➵- a + [ b - { - 2a² + ab }]

➵ - a + [ b + 2a² -ab ]

➵ - a + b + 2a² - ab

➵ 2a² - a + b - ab

______________________

Suppose we are given a numerical expression consisting of numbers with two or more of the fundamental operations . We perform these operations strictly in the following order :

• Division
• Multiplication
• Addition
• subtraction

There are four kinds of brackets .

• Bar , vinculum —
• Round brackets , or small brackets , or parentheses ( )
• Curly brackets , or Big brackets . { }
• Square brackets , or Big brackets [ ]