Question

The perimeter of a rectangle is 28x2 + 16x2 + 8x + 4. One of its sides is 8x AL
Find the other side​

Answer 1

Answer:

14x³+2

Step-by-step explanation:

Perimeter of a rectangle (2l + 2b)

= 28x3 + 16x2 + 8x + 4

Let one side (l) = 8x2 + 4x

∴ 2l = 2(8x2 + 4x) = 16x2 + 8x

∴ 2b = (28x3 = 16x2 + 8x + 4) – (16x2 + 8x)

= 28x3 + 16x2 + 8x + 4 – 16x2 – 8x

= 28x3 + 4

∴ Other side (b) = (28x3 + 4)/2

= 14x3 + 2

Answer 2

Answer:

2(23-2x)

Step-by-step explanation:

2(8x+s)=28×2+16×2+8x+4

2(8x+s)=56+32+8x+4

16x+2s=92+8x

2s=92+8x-16x

2s=92-8x

s=(92-8x)÷2

s=46-4x

s= 2(23-2x)