Question

l) 5xy²- 10xyz + 5xz²
m) x³+ 3x²+ 3x + 1 - 27y³

n) x²- 6xy + 9y²

o) x³+ 6x²y + 12xy²+ 8y³

p) 125x³+ y⁶

q) x² + 4xy + 4y² - 2x -  4y + 1

Answer 1

\(l,=5x\left(y^2-2yz+5z\right)\\ m,=\left(x+1\right)^3-27y^3\\ =\left(x+1-3y\right)\left(x^2+2x+1+3xy+3y+9y^2\right)\\ n,=\left(x-3y\right)^2\\ o,=\left(x+2y\right)^3\\ p,=\left(5x+y^2\right)\left(25x^2-5xy^2+y^4\right)\\ q,=\left(x+2y\right)^2-2\left(x-2y\right)+1\\ =\left(x+2y-1\right)^2\)