19. From the sum of 2b2 + 3bc-b2-bc-c? and bc + 2c2. Subtract the
sum of 3b2 - c? and 4a²b-8ab2.
Answers
Answered by
5
Answer:
-2b²+3bc+c²+c-4a²b+8ab
Step-by-step explanation:
sum:2b²+3bc-b²-bc-c and bc +2c²
=(2b²-b²)+(3bc+bc-bc)+2c²-c
=b²+3bc-c²+2c²
sum:3b²-c and 4a²b-8ab²
=3b²-c+4a²b-8ab²
subtraction:=b²+3bc-c²+2c²-(3b²-c+4a²b-8ab)
=b²+3bc-c²+2c²-3b²+c-4a²b+8ab
=(b²-3b²)+3bc-(c²+2c²)+c-4a²b+8ab
=-2b²+3bc+c²+c-4a²b+8ab
hope it helped u buddy
Similar questions