3+3 because I use the rule "same sign sum"
Use this sum of cubes to help you
<span> (a^3+b^3)= (a+b)(a^2-ab+b^2)
</span>
a=3x and b=7 Plug into equation above and solve for x now you will get one real answer and two imaginary.
Do you understand or need more help?
I hope this helps and have a wonderful day
Answer:<em> </em><em>a/b + c/d = 14/45 ≈ 3.111</em>
Step-by-step explanation:
<em>a / b + c / d may have the smallest value, for example, if:</em>
<em>a = 1</em>
<em>b = 9</em>
<em>c = 2</em>
<em>d = 10</em>
<em>Therefore, we get:</em>
<em>1/9 + 2/10 = 14/45 ≈ 3.111</em>
Answer: 0.54x = 2.72
x=5.04
Step-by-step explanation: ...