Question

add 3x³-5x²+8x; 15x³-6x²-3x and 9x³+5x²-4x

Answer 1

Answer:

27x³–6x²+x

Step-by-step explanation:

You can. also solve it by horizontal method: given below:

(3x³–5x²+8x)+(15x³–6x²–3x)+(9x³+5x²–4x)

Arrange the like terms:

=(15x³+3x³+9x³)+(5x²–5x²–6x²)+ (8x–3x–4x)

= 27x³–6x²+x

Mark as brainlist....