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We can go about solving this problem by equating the coefficients of x^2, x, and the constant c. First of all, we must expand the bracket (5x + 3)(ax + b). One helpful way of doing this correctly is the FOIL...

I'll first ask the student to explain the difference between a moving source and moving observer, prompting them until they get something like this(asking them to draw a diagram if needed)- When the observer...

If we want to have a idaafa like "the woman's husband's book" (=the book of the husband of the woman): Well, we can form as long as string of nouns as we like, all in the 'of' order, with only the ...

The Idaafa construction is how we do possession in Arabic. In English, we can express possession in two different ways: "the woman's book" or "the book of the woman". Arabic has a structu...

Multiplying indices is much easier then it first seems. First you need to undertand what an index or power is, A^2 (A to the power of 2) means AxA, A^3 (A to the power of 3) means AxAxA and so on. The diffic...