Question

Pomożecie?
Zastosuj wzory skróconego mnożenia.

Answer 1

(1/2a+3b)²=(1/2a)²+2*1/2*a*3b+(3b)²=1/4a²+3ab+9b²
(3x-2a)²=9x²-12ax+4a²

(x-2y)²=x²-4xy+4y²

(10x-1/2y)²=100x²-10xy+1/4y²

(7x+y)²=49x²+14xy+y²

Answer 2

1. (1/2a+3b)^2=(1/2a)^2+2*1/2*a*3b+(3b)^2=1/4a^2+3ab+9b^2
(3x-2a)^2=9x^2-12ax+4a^2
2. (x-2y)^2=x^2-4xy+4y^2
3. (10x-1/2y)^2=100x^2-10xy+1/4y^2
4. (7x+y)^2=49x^2+14xy+y^2