Question

add: 2x(1+x²+3x)+5x and 4 (x²+3x-1)​

Answer 1

Answer:

2x^3+10x^2+19x-4 is the answer.

Explanation:

2x(1+x²+3x)+5x+4 (x²+3x-1)​

=2x+2x^3+6x^2+5x+4x^2+12x-4

=2x^3+10x^2+19x-4

Hope it helps you.

pls mark as brainliest.

Answer 2

Add: 2x(1+x²+3x)+5x and 4 (x²+3x-1)

2x(1+x²+3x)+5x+ 4 (x²+3x-1)

=2x+2x³+6x²+5x+4x²+12x-4

=2x³+10x²+19x-4