Match each expression to its equivalent standard form.(match with either 1,2 or 3)
x2 - 4x - 4
x2 - 4x + 8
x2 + 16
x2 + x + 2
x2 + 4
x2 + 2x + 2

1) (x-2+2i)(x-2-2i)

2) (x+2i)(x-2i)

3) (x+1+i)(x+1-i)

The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy − 15x = 125 b) 5xy + 15x = 125 c) 15x2 − 5xy = 125 d) 15x2 + 5xy = 125