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Start by expanding the brackets: (Take special care to remember the minus sign when expanding the second bracket as this is a common mistake)= 62x + 63 - 3x - x(1/x)Simplify further:= 12...

By Pythagoras' Theorem, we know 5²+12² = c². So c² = 169, thus c = +13 as lengths are positive.

Strong winds blowing across the water. Storm surges are a product of extreme low pressure weather systems which raise sea levels, When low pressure combines with a high tide and strong onshore winds, the ...

To solve the first inequality, you need to subtract 6 from both sides of the inequality, to obtain 4n≤12. This can then be cancelled down to n≤3 by dividing both sides by 4. To solve the second inequality...

Wegen des schlechten Wetters, habe ich mich erkältet