Question

me ajudem!

Quadrado da soma de dois termos.

A)(2×+1)elevado a 2?

B)(5+3×)elevado a 2?

C)(2×+y)elevado a 2?

D)(r+4s)elevado a 2?

E)(10×+y)elevado a 2?

F)(3y+3×)elevado a 2?

G)(-5+n)elevado a 2?

H)(-3×+5)elevado a 2?

I)(a+ab) elevado a 2?


por favor me ajudem!

Answer 1

A)(2x+1)^2 =2x^2 .2x.(1)^2
=> 4x^2 +4x+ 1

B) (5+3x^2)= (5)^2 +2.5.3x + (3x)^2
=> 25 +30x+6x^2

C)(2x+y)^2 = (2x)^2 +2.2x.y+ (y)^2
=> 4x^2 +4xy+y^2

D)(r+4s)^2 = (r)^2 +2.r.4s+ (4s)^2
=> R^2+ 8rs+ 16s^2

E)(10x+y)^2 = (10)^2 +2.10.y+(y)^2
=>100+20y+y^2

F)(3y+3x)^2= (3y)^2+2.3x.3y+(3x)^2
9y^2+ 18xy+9x^2