Q379: Simplify.<br>- <span class="ql-formula" data-value="-\left(-5 x^{4}-7 x^{3}-x^{2}+2.6\right)"><span
Q380: Express using positive exponents. Then simplify.<br>-
Q381: Multiply.<br>- <span class="ql-formula" data-value="\left(x-\frac{1}{4}\right)\left(x+\frac{1}{4}\right)"><span class="katex"><span class="katex-mathml"><math
Q382: Find the degree of the polynomial.<br>-
Q383: Simplify.<br>- <span class="ql-formula" data-value="\left(\frac{x y^{4}}{w^{2} z}\right)^{-6}"><span
Q384: Multiply.<br>- <span class="ql-formula" data-value="\left(-7 x^{2}\right)\left(-8 x^{6}\right)\left(-2
Q386: Multiply.<br>- <span class="ql-formula" data-value="(5 p-1)\left(25 p^{2}+5
Q387: Collect like terms and then arrange
Q388: If the number in the statement
Q389: Express the following using negative exponents.<br>-