(3y2-8y+6)-(2y2-8y+7)
Apply the distributive property.
3y2-8y+6-(2y2)-(-8y)-1⋅7
Simplify.
Multiply 2 by -1.
3y2-8y+6-2y2-(-8y)-1⋅7
Multiply -8 by -1.
3y2-8y+6-2y2+8y-1⋅7
Multiply -1 by 7.
3y2-8y+6-2y2+8y-7
3y2-8y+6-2y2+8y-7
3y2-8y+6-2y2+8y-7
Combine the opposite terms in 3y2-8y+6-2y2+8y-7.
Add -8y and 8y.
3y2+6-2y2+0-7
Add 3y2+6-2y2 and 0.
3y2+6-2y2-7
3y2+6-2y2-7
Subtract 2y2 from 3y2.
y2+6-7
Subtract 7 from 6.
y2-1
y2-1
Simplify (3y^2-8y+6)-(2y^2-8y+7)