Question

решите пожалуйста, срочно надо

Answer 1

#1 a) (3m-2)^2= 9m^2-12m+4
b) (3x+y)^2 = 9x^2+6xy+y^2
в) (3/4a-b)(3/4a+b) = 9/16 a^2- b^2
#2
a) (m+4)(m-5) - (m+3)^2 = m^2-5m+4m-20- (m^2+6m+9) = m^2-5m+4m-20-m^2-6m-9= -7m-29

Answer 2

спс, а 3 и 4?