Activity $2$ The Simplest of Them $A11$
Express the given algebraic expression to its simplest form. Write your answer $o\pi $ a
separate sheet of paper.
$4$ $\dfrac {4x^{2}-9} {8x^{3-27}}$
$1$ $\dfrac {45a^{2}b} {30ab}$
0 $5$ $\dfrac {2a^{2-2}} {2a^{2+4a-6}}$
$2$ $\dfrac {4a-1} {1-4a}$
$6$ $\dfrac {x^{2-3x-10}} {x^{2-7x+10}}$
$3$ $\dfrac {12a^{z}-21a} {12a^{2-28a}}$