(8p-q)2-(4p-q) (16p+3q)= упростить уравнение

Question

(8p-q)2-(4p-q) (16p+3q)= упростить уравнение

Answer 1

(8p-q)²-(4p-q)(16p+3q)=64p²-16pq+q²-64p²-12pq+16qp+3q²=4q²-12pq=4q(q-3p)