If the area of a larger rectangle is 3x(4x-6) and the area of a smaller rectangle is 5(2x+3), what is the difference in the areas of the rectangles? (use " to show exponent)

The first term of a sequence is -12. the recursive formula for the sequence is an = an-1 + 9. what are the next 3 terms in the sequence? a) -3, -15, -27 b) -3, 6, 15 c) -3, -6, -3 d) -3, -6, 3