- well first you want to foil (x+5)(x-2)
- x*x=xsquared
- x*-2=-2x
- 5*x=5x
- 5*-2=-10
- so then you get xsquared-2x+5x-10=xsquared+3x-10
- now times that by 3
- 3xsquared+9x-30
- so y=3x2+9x-30

- well first you want to foil (x+5)(x-2)
- x*x=xsquared
- x*-2=-2x
- 5*x=5x
- 5*-2=-10
- so then you get xsquared-2x+5x-10=xsquared+3x-10
- now times that by 3
- 3xsquared+9x-30
- so y=3x2+9x-30

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