Question

Help please

What is the sum or difference?
1. 2x4 – 8x4 (1 point)–6x8
–6x4
–16x4
–16x8

What is the sum or difference?
2. 6y5 – 9y5
(1 point)–3y10
15y5
–54y5
–3y5

3. Write the polynomial in standard form. Then name the polynomial based on its degree and number of terms.

6 – 12x + 13x2 – 4x2 (1 point)9x2 – 12x; quadratic binomial
9x2 – 12x + 6; quadratic trinomial
–3x2 + 6; quadratic binomial
9x2 – 12x –6; cubic trinomial