Question

@ 3x.(x-1)+ (x+2)(x+5)=
© (2X +1)² + ( 3X+1) ²​

Answer 1

(2x + 1)² + (3x + 1)² =

(4x + 1) + (9x + 1) =

36x² + 4x + 9x + 1 =

36x² + 13x + 1

3x.(x-2)+(x-1).(x+5)

3x²-6x+x²+5x-x-5

3x²+x²-6x+4x-5

4x²-2x-5