(3a-5b)^2+(5a-3b)^2= -9x^2*(2x-y^2)+(1-3xy)*(1+3xy)+1/2x*(6x^2)= (3a-4)^2-3a*(3a-8)=

Question

(3a-5b)^2+(5a-3b)^2= -9x^2*(2x-y^2)+(1-3xy)*(1+3xy)+1/2x*(6x^2)= (3a-4)^2-3a*(3a-8)=

Answer 1

Ответ:

Объяснение:

1)   =9a^2-2*3a*5b+25b^2+25a^2-2*5a*3b+9b^2=

=9a^2-30ab+25b^2+25a^2-30ab+9b^2=34a^2+34b^2