Question

1- Calcule os produtos notaveis:
*
a) (X+3)²
b) (Y+4)²
c) (R+5)²
d) (2X+1)²
e) (X+Y)²
f) (9X+1)²
g) (2X+3Y)³

Answer 1

a)(x + 3 )²=x² + 6 x + 9
b)(y + 4)² = y² + 8 y + 16
c)(R + 5 )² = R² + 10 R  + 25
d)(2 x + 1)² = 4 x² + + 4 x + 1
e)(x + y)² = x² + 2 x y + y²
f)(9 x + 1 )² = 81 x² + 18 x + 1
g)(2 x + 3 y )³ =(4 x² + 12 x y + 9 y²) (2 x + 3 y) = 8 x³ + 36 x² y + 54 x y² + 27 y³