Question

What is the simplified form of this expression?

(-3x^2+ 2x - 4) + (4x^2 + 5x+9)

OPTIONS
7x^2 + 7x + 5
x^2 + 7x + 13
x^2 + 11x + 1
x^² + 7x+5

Answer 1

Option 4

Explanation:

=>
`-3x^2+2x-4 + 4x^2+5x+9`

Combining like terms

=>
`-3x^2+4x^2+2x+5x-4+9`

=>
`x^2+7x+5`