Explanation (x −y)3 = (x − y)(x −y)(x −y) Expand the first two brackets (x −y)(x − y) = x2 −xy −xy y2 ⇒ x2 y2 − 2xy Multiply the result by the last two brackets (x2 y2 −2xy)(x − y) = x3 − x2y xy2 − y3 −2x2y 2xy2 ⇒ x3 −y3 − 3x2y 3xy2 Always expand each term in the bracket by all the other How do you simplify #(x^5y^8)/(x^4y^2)#?Simplify xyz xyz' x'yz' x'y'z Step 1 Draw the Karnaugh that represents the expression by carefully a mark in each appropriate square Cover the marked boxes as best you can with ovals, using as few rectangles as possible Allowed coverings for this expanded setup is

Solve A System Of Non Linear Equation Docx