Question

(7х+4)²=

(6-1/3х)²=

0,36-16²=

Answer 1

Ответ:

(7х + 4)² = 49х² + 56х + 16

(6 - 1/3 × х)² = 36 - 4х + 1/9 × х = 36 - 35/9 × х

0,36 - 16² = 0,36 - 256 = -255,64

Answer 2

Ответ:

1) 49²+56x+16

2)36-4х+ 1/9x²

3)-255,64

Объяснение:

(7х+4)²= (7x)²+2x•7x•4+4² = 49²+56x+16

(6-1/3х)²=6²-2•6•1/3x+(1/3x)²= 36-4х+ 1/9x²

0,36-16²=0,36- 256= -255,64