find the sum of (7x²-x-4) and (x²-2x-3) and subtract (-2x²+3x+5) from the result.
Answers
Answered by
3
Answer:
= 10x² - 6x - 12
Step-by-step explanation:
= {(7x²-x-4) + (x²- 2x - 3) } - (-2x²+3x+5)
= { 7x² - x -4 + x² - 2x - 3} - (-2x²+3x+5)
= { 8x² - 3x - 7} - (-2x²+3x+5)
= 8x² - 3x - 7 + 2x² - 3x -5
= 10x² - 6x - 12
Similar questions