Question

разложите на множители

m^2-81

b^2-121c^2

169m^2-16n^2

36m4-k2p2

(a+3)^2-144

^степень

Answer 1

$m^2-81=(m-9)(m+9)$

$b^2-121c^2=(b-11c) (b+11c)$

$169m^2-16n^2=(13m-4n) (13m+4n)$

$36m^4-k^2p^2=(6m^2-kp) (6m^2+kp)$

$(a+3)^2-144=(a+3-12) (a+3+12)= (a-9) (a+15)$