Question

whay should be subtracted from-20x²-7x³+5x²+25 to obtain 8x⁴-7x²+29x-17​

Answer 1

-8x⁴ -7x³ -8x² -29x +42 should be subtracted from -20x² -7x³ +5x² +25 to get 8x⁴ -7x² +29x -17

Step-by-step explanation:

-20x² -7x³ +5x² +25 -(8x⁴ -7x² +29x -17)

.

-20x² -7x³ +5x² +25 -8x⁴ +7x² -29x +17

.

-8x² -7x³ -8x⁴ +42 -29x

.

Arranged order: -8x⁴ -7x³ -8x² -29x +42