Question

Desenvolva:
a) (x + 1)²
b) (2x + 2
c) (3x + y)²
d) (4x³ + 5y)²
e) (6x⁶ + 2y³)²

Answer 1

Resposta:

Desenvolva:

a) (x + 1)²

= x²+2.1.x + 1²

= "x²+2x+1"

___________

b) " (2x + 2)² "

= 4x²+2.2.2x+4

= "4x² + 8x +4 "

__________

c) (3x + y)²

= 9x²+2.3x.y+ y²

= 9x²+6xy+ y²

_________________

d) (4x³ + 5y)²

= 16x⁶+2.5y.4x³+ 25y²

= 16x⁶+40x³.y + 25y²

e) (6x⁶ + 2y³)²

= 36x¹²+2.2y³.6x⁶+4y⁶

= " 36x¹²+24x⁶y³+4y⁶ "