Question

(6-a)*(6+a)=
(11y-4)*(11y+4)=
(8x+7b)*(8x-7b)=
(15c³-1)*(15c³+1)=
100-q²=
196p²-r²=
25x²-289y²=
a²b⁴-9c²=
(m-1)²-121=

Answer 1

1) =36-а^2; 2) =121у^2-16; 3)= 64х^2-49а^2; 4) =225с^6-1; 5) = (10- q)×(10+q); 6) = (14p-r)×(14p+r); 7) = 5x-17y)×(5x+17y); 8) = (ab^2-3)×(ab^2+3); 9) c^2=корень из с; 10) =m^2-2m+1-121=m^2-2m-120; m^2-2m-120=0; D=4+480=484=22^2; m1=2+22/2=12; m2=2-22/2=-10. Ответ:m1=12; m2=-10.