x^2 - 7x + 15
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(x+4)/ x^3 - 3x^2 - 13x + 78
- x^3 + 4x^2
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- 7x^2 - 13x
- - 7x^2 - 28x
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15x + 78
- 15x + 60
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18
remainder = 18
The Answer is -3 it would be easier to use a calculator for that than this
30 divided by 10 and youll get it into each hope that helped
D to B =180
B to D=180
D to C =19
