Question

Разработайте и уменьшите выражения
A = 2x (x + 3)
B = (2x-5) (4 + x)
C = (x + 4) (x-6) + (1 + х) (х-7)

Answer 1

a=2x²+6x

b=8x+2x²-20-5x
b=2x²+3x-20

c=x²-6x+4x-24+x-8+x²-7x
c=2x²-8x-32

Answer 2

A = 2x² + 6x
B = 8x + 2x²-20-5x
B = 2x² + 3x-20

C = x²-6x + 4x-24 + x-7 + x²-7x
C = 2x²-6x + 4x + x-7x- 24-7
C = 2x²-8x -31