Question

Ajutați-mă va rog frumos, urgent!!!!! ​

Answer 1

1)

a) (x+y)²=x²+2xy+y²

b) (a-3)²=a²-6a+9

c) (x+a)²=x²+2ax+a²

d) (b-2)²=b²-4b+4

e) (3-x)²=9-6x+x²

f) (4+a)²=16+8a+a²

2)

a) (2x - 3y)²=4x²-12xy+9y²

b) (3a+5b)²=9a²+30ab+25b²

c) (rad3x-rad2y)²=3x²-2rad6xy+2y²

d) (1/3a + 2x)² = 1/9a²+4/3ax+4x²

e) (rad3 +3b)² = 3 +6rad3 +9b²

f) (b/4 - a/3)² = b²/16 - ab/6 +a²/9