Question

Pls help me 20 POINTS

Answer 1

Explanation:

1) (y - 1)²

1. y*y =y²

2. 2(y)(-1)= -2y

3 . (1)(1) = 1

(y-1)² = y² - 2y + 1

2) (6y + 3)²

1. (6y)(6y) = 36y²

2. (2)(6y)(3)=36y

3. (3)(3) = 9

(6y + 3)² = 36y² + 36y + 9

3) (4x - y)²

1. (4x)(4x) = 16x²

2. (2)(4x)(-y) = -8xy

3. (y)(y) = y²

(4x -y)² = 16x² - 8xy + y²

4) (y - 12)²

1.(y)(y) = y²

2. (2)(y)(-12) = -24y

3. (12)(12) = 144

(y - 12)² = y² - 24y + 144

`(x + (1)/(3))^(2)\\\\ 1. (x)(x) =x^(2)\\\\ 2. (2)(x)((1)/(3))=(2)/(3)x\\\\\\ 3. ((1)/(3))((1)/(3))=(1)/(9)\\\\\\(x +(1)/(3))^(2)=x^(2)+(2)/(3)x+(1)/(9)`

6) (ab +c)²

1.(ab)(ab) = a²b²

2. (2)(ab)(c)=2abc

3. (c)(c)=c²

(ab+c)² = a²b² + 2abc + c²