Subtract these polynomials. (3x^2+6x+7) - (6x^2-5x-7)

3x²-11x-14=0  

Step-by-step explanation:

Given equation is : (3x²+6x+7)-(6x²-5x-7)

Putting the equation equals to zero making it in the form of polynomial equation (3x²+6x+7)-(6x²-5x-7)=0

Opening the bracket of the equation, the negative sign outside the bracket changes the sign of the values after opening the bracket.

                3x²+6x+7-6x²+5x+7=0

Solving this by subtracting the values of same type i.e subtracting the component of x having the same power.

                3x²-6x²+6x+5x+7+7=0

                              -3x²+11x+14=0    OR   3x²-11x-14=0  

So, on subtracting the above equation the quadratic equation is obtained 3x²-11x-14=0

1,645,493,059.35

step-by-step explanation:

1. 3.4/4

2. 0.8/7

3. 0.5 x 3

4. 0.9 x 6

5. 10.8

6. 2.35

7. 0.567

8. 9.35

9. 0.02

10. 0.06

11. 0.16

12. 0.42

13. 0.63

14. 5.6

15. 8.1

16. 9.9

17. 0.28

18. 0.48

19. 0.27

20. 0.49

21. 0.45

22. 0.72

23. 0.9

24. 0.88

25. 0.75

26. 0.16

27. 0.328

28. 0.495

29. 0.72

30. 1.068