Question

How do you simplify `(2x ^ { 2} + 7x - 7) + ( 5x ^ { 2} + 2x + 14) - ( 7x ^ { 2} - 17)`?

Answer 1

9x - 10

Explanation:

Removing brackets first,
`2x^2x+7x-7+5x^2+2x+14-7x^2+17`

Combining like terms together,
`(2x^2+5x^2-7x^2)+(7x+2x)+(-7+14-17)`
`(cancel7x^2-cancel7x^2+(9x)+(-24+14)`
`9x-10`