Step (1) is incorrect. To divide by a number means to multiply by the reciprocal. In step (1) they did not convert the polynomial into its reciprocal.
<span><span><span>(pm)*(</span>p</span>n)</span><span>=<span><span>mn(</span><span>p)^<span>2
The answer is mn(p)^2</span></span></span></span>
2 rows of 18 chairs are blue so that is 36 chairs. then 4 rows of 12 chairs are blue so that is 48 chairs 36 plus 48 is 84 total blue chairs
I hope this helps you
2/5x=3/4-1/3
2/5x=9-4/12
2/5x=5/12
x=25/24