$25a^{2}b+35a{b}^2=\mathrm{.}\mathrm{.}\mathrm{.}\mathrm{.}\mathrm{.}25a^2b+35ab^2=.....$

6ab + 12b = ………

The prime factorization of 72 is ………

0 $÷\backslash div$ 36 (x – 4) = …………

(x + 3) (x + 6) = ………

$11x{y}^2{z}^3÷55xyz=\dots \dots 11\; xy^2\; z^3\; \backslash div\; 55\; xyz\; =\; \dots \dots$

$l{x}^2+mx=\dots \dots lx^2\; +\; mx\; =\; \dots \dots$

$(l\text{–}8{)}^2=\dots \dots (l\; –\; 8)^2\; =\; \dots \dots$

$81^2\text{–}{3}^8=\dots \dots 81^2\; –\; 3^8\; =\; \dots \dots$

$x^2-2+\frac{1}{x^2}=\mathrm{.}\mathrm{.}\mathrm{.}\mathrm{.}\mathrm{.}\mathrm{.}\mathrm{.}\mathrm{.}\mathrm{.}x^2-2+\backslash frac1\{x^2\}=.........$