Answer:
x=18
Step-by-step explanation:
7x-1=125
<u> +1 +1</u>
<u>7x</u>=<u>126</u>
7 7
X=18
= (16x3 - 8x2 + 4x4) / 2x
= 4x * (4x2 - 2x + x3) / 2x
= 2 * (4x2 - 2x + x3)
= 8x2 - 4x + 2x3
Answer A
3500
