Question

silplifique as expressoes : produtos notaveis
(x +1)2+ (x +2)2=
(2x+1)2 +(3x+1)2=
5x-(2x+3)2=
(x+5)2-x(x+3)=

Answer 1

(x+1)²+(x+2)²= X²+2x+1+X²+4x+4

(2x+1)²+(3x+1)²=4x² + 4x + 1 + 9x² + 6x + 1

5x - (2x + 3) (2x + 3)
5x - (4x² + 6x + 6x + 9)
5x - 4x² - 6x - 6x - 9

(x+5)2-x(x+3)= x²+5x+25-x²-3x