Question

If A= 3x2-2x+5 ; B= 2x2-6x-7 ; C= - 5x2+8x+2, then find A+B-C.

Answer 1

Step-by-step explanation:

A+B+C

(6-2x+5)+(4-6x-7)+(10+8x+2)

11-2x-3-6x+12+8x

11-3+12-2x-6x+8x

20

Answer 2

Answer:

it's your ans.....

Step-by-step explanation:

3×2-2x+5+2×2-6x-7-(-5×2+8x+2)

6-2x+5+4-6x-7-10-8x-2

6+5+4-7-10-2-2x-6x-8x

11+4-7-10-2-2x-6x-8x

15-7-10-2-2x-6x-8x

8-10-2-2x-6x-8x

-2-2- 2x-6x-8x

-4-8x-8x

-4- 16x