pls help me pls help me pls help me pls help me pls help me pls help m

1.	pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls
Answer» 6. $( \sqrt{7} - \sqrt{6} )(3 \sqrt{7} - 2 \sqrt{6} )$ $= ( \sqrt{7} )(3 \sqrt{7} ) + ( \sqrt{7} )( - 2 \sqrt{6} ) + ( - 6)(3 \sqrt{7} ) + ( - \sqrt{6} )( - 2 \sqrt{6} )$ $= 21 - 2 \sqrt{42} - 3 \sqrt{42} + 12$ $= 33 - 5 \sqrt{42}$ .. .. .. .. 7. ${a}^{n} + {a}^{x}$ None

Discussion