Question

Which expression is equivalent to x2+3x+ 3+ (2x+134+15) - (x+5))

Answer 1

`x^(2) + ( 4x) + (147)`

Explanation:

Here, the given expression is

`x^(2) +3x +3 + (2x+134+15) - (x+5)`

Now, simplifying the brackets, we get

`x^(2) +3x +3 + (2x+134+15) - (x+5)` =
`x^(2) +3x +3 + 2x+134+15 - x -5`

Now, operate on the like terms.

=
`x^(2) + ( 3x + 2x -x) + (134 + 15 + 3 -5)`

=
`x^(2) + ( 4x) + (147)`

Hence, the given expression is simplified to the quadratic equation
`x^(2) + ( 4x) + (147)`