34 Algebra. 



15. Multiply Jt- ^ —-r '^^ hy\x'^-—x 



16. Simplify I {-7^}' ^" 



17; Simplify ' ^ ^ . 



zc?. Simplify —^ ^ •{ 3 



.,. Simplify ^(^')^(-')^'^ 



XV 



WWi^'yvY' ' '^' ^ 



20. Simplify ~ ^-~- — —' 



(ax)'^s^6a 



