Question

A-(A-B) = A intersection B​

Answer 1

Answer:

The formula for area of a triangle is (1/2)bh. b is the base and h is the height.

A = (1/2)(x-2)(2x+4)

FOIL first and then distribute the (1/2)

A = (1/2)(2x2 + 4x -4x -8)

A = (1/2)(2x2 - 8)

A = x2 - 4