Question

Simplify the given expression. (3x2 + 5x + 11) + (4x2 – 15x – 2)

Answer 1

`=7x^2 - 10x -9`

Explanation:

Given that:

=(3x2 + 5x + 11) + (4x2 – 15x – 2)

By opening brackets we get:

=
`3x^2 +5x +11 +4x^2 -15x -2`

Now adding like terms: constants into constants and variabe with same power of x into each other:

=
`(3x^2 + 4x^2) + (5x - 15x) + (11-2)\\7x^2 - 10x -9`

I hope it will help you!