Q127: Express using positive exponents. Then simplify.<br>-
Q128: Evaluate the polynomial.<br>- <span class="ql-formula" data-value="-5
Q129: Collect like terms and then arrange
Q130: Divide and simplify.<br>- <span class="ql-formula" data-value="\frac{(26
Q131: Multiply and simplify.<br>- <span class="ql-formula" data-value="3^{-3}
Q133: Evaluate.<br>- <span class="ql-formula" data-value="m^{3}"><span class="katex"><span class="katex-mathml"><math
Q134: Multiply.<br>- <span class="ql-formula" data-value="(\mathrm{w}-10)^{2}"><span class="katex"><span class="katex-mathml"><math
Q135: Arrange the polynomial in descending order.<br>-
Q136: Multiply and simplify.<br>- <span class="ql-formula" data-value="y^{4}
Q137: Multiply.<br>- <span class="ql-formula" data-value="-11 x^{5}\left(-7 x^{5}-5