12) Adding 7x² - 4x + 5. - 3x + 2x - 1 and 5x? - X + 9, we get
Answers
Answered by
1
Answer:
7x²-10x-4 is the answer of these questions
Answered by
3
Answer:
adding 7x²-4x+5+(-3x+2x-1)+(5x-x+9)
=7x²-4x+5+(-x-1)+(4x+9)
=7x²-4x+5-x-1+4x+9
=7x²-4x+4x-x+9+5-1 [putting in the x²+x+1 form]
=7x²-x-13
Step-by-step explanation:
hope you will understand
Similar questions