Practice problem
Expand the product PQPQPQ, where P=x+1P = x+1P=x+1 and Q=x2+10x−1Q = x^2 + 10x - 1Q=x2+10x−1.
x3+11x2+9x−1x^3 + 11x^2 + 9x - 1x3+11x2+9x−1
x3+11x2+11x+1x^3 + 11x^2 + 11x + 1x3+11x2+11x+1
x3+11x2+10xx^3 + 11x^2 + 10xx3+11x2+10x
x2+11xx^2 + 11xx2+11x
Type a concept, like “slope” or “photosynthesis”.
