Practice problem
Distribute 12\frac{1}{2}21 through the expression 12(2x2−4x+8)\tfrac{1}{2}\big(2x^2-4x+8\big)21(2x2−4x+8)
4x2−8x+164x^2-8x+164x2−8x+16
x2−4x+8x^2-4x+8x2−4x+8
x2−2x+4x^2-2x+4x2−2x+4
2x2−2x+162x^2-2x+162x2−2x+16
Type a concept, like “slope” or “photosynthesis”.