Question

Level 3: What is the sum of the polynomials?
(-7x2 – 3x4 – 5) + (-3x4 +3+9x²)

Answer 1

Remove parentheses.

−7x²−3
`x^(4)`−5−3
`x^(4)`+3+9x²

Add −7x² and 9x² .

2x²−3
`x^(4)`−5−3
`x^(4)`+3

Subtract 3
`x^(4)` from −3
`x^(4)`.

2x²−6
`x^(4)`−5+3

Add −5 and 3.

2x²−6
`x^(4)`−2

Explanation:

Answer 2

2x^2-6x^4-2

Explanation: