Question

Упростите выражения по алгебре

Answer 1

(b-6)^2-2b(-4b-6)=b^2-12b+36+8b^2+12b=9b^2+36

(b+6)^2-2b(3b+6)=b^2+12b+36-6b^2-12b=-5b^2+36

(b+5)^2-2b(5b+5)=b^2+10b+25-10b^2-10b=-9b^2+25

(b+3)^2-2b(-4b+3)=b^2+6b+9+8b^2-6b=9b^2+9

(b+2)^2-2b(5b+2)=b^2+4b+4-10b^2-4b=-8b^2+4