Question

b. (20x6 + 6x3 - 20x) + (1 -10x4 - 9x3 - x+ 20)​

Answer 1

Step-by-step explanation:

(20*6+6*3-20x)+(1-10*4-9*3-x+20)

(120+18-20x)+(1-40-27-x+20)

(138-20x)+(21-67-x)

138-20x-46-x

92-21x

I hope it helps