Lorne subtracted 6x2 - 2x + 3 from -3r? + 5x2 + 4x - 7. use the drop-down menus to identify the steps lorne used
to find the difference
1. (-3x3 + 5x2 + 4x – 7) + (-6x2 + 2x - 3)
2. (-3x3) + 5x2 + 4x +(-7) + (-6x3) + 2x + (-3)
3.[(-38) + (-6x%)] + [4x + 2x] + [(-7) + (-3)] + [5x2]
4-9x2 + 6x + (-10) + 5x?
5.-9x2 + 5x2 + 6x - 10

1. Wrote as addition of the added inverse

Step-by-step explanation:

2. Wrote terms as addition of opposite

3. Grouped like terms

4. Combined like terms

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step-by-step explanation:

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.