Answer:
Zhang: 17, Robert: 22
Step-by-step explanation:
Robert's age would be z+5, 2×z+5=39, z=17 So Zhang's age would be 17, and Robert's would be 22
Answer:
c/16
Step-by-step explanation:
Not sure because that’s a lot of numbers
Answer:
This expression isn't factorable with rational numbers.
Answer:
Hello,
remainder is 15/8
Step-by-step explanation:
![\begin{array}{c|ccc|c}&x^3&x^2&x&1\\---&---&---&---&---\\&1&1&1&1\\x=\dfrac{1}{2} &&\dfrac{1}{2} &\dfrac{3}{4} &\dfrac{7}{8} \\---&---&---&---&---\\&1&\dfrac{3}{2}&\dfrac{7}{4}&\dfrac{15}{8}\\\end{array}\\\\\\x^3+x^2+x+1=(x-\dfrac{1}{2} )*(x^2+\dfrac{3}{2}x+\dfrac{7}{4}) +\dfrac{15}{8}](https://tex.z-dn.net/?f=%5Cbegin%7Barray%7D%7Bc%7Cccc%7Cc%7D%26x%5E3%26x%5E2%26x%261%5C%5C---%26---%26---%26---%26---%5C%5C%261%261%261%261%5C%5Cx%3D%5Cdfrac%7B1%7D%7B2%7D%20%26%26%5Cdfrac%7B1%7D%7B2%7D%20%26%5Cdfrac%7B3%7D%7B4%7D%20%26%5Cdfrac%7B7%7D%7B8%7D%20%5C%5C---%26---%26---%26---%26---%5C%5C%261%26%5Cdfrac%7B3%7D%7B2%7D%26%5Cdfrac%7B7%7D%7B4%7D%26%5Cdfrac%7B15%7D%7B8%7D%5C%5C%5Cend%7Barray%7D%5C%5C%5C%5C%5C%5Cx%5E3%2Bx%5E2%2Bx%2B1%3D%28x-%5Cdfrac%7B1%7D%7B2%7D%20%29%2A%28x%5E2%2B%5Cdfrac%7B3%7D%7B2%7Dx%2B%5Cdfrac%7B7%7D%7B4%7D%29%20%2B%5Cdfrac%7B15%7D%7B8%7D)