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Firstly factorise the denominator to get (2x+7)(x+9). Then make the fraction equal to the seperate fractions with constants. E.g 16x+78/2x^2+25x+63=A/(2x+7)+B/(x+9). then multiply accross by the denominator ...

The derivative is a measure of the rate of change of f(x) as x varies. Alternatively it is the gradient of the tangent at a specific point of the graph. There are different rules for finding the derivative d...

Firstly, explain briefly what you understand from the question. => (x+5y) 5 = (x+5y)(x+5y)(x+5y)(x+5y)(x+5y) What would be the binomial expansion of form (x+y), brief explanation of pascals triangle and w...

A derivative is the result of an operation called differentiation. If we differentiate something, a function, the result tells us how much the function changes with respect to a chosen variable. For instance...

The important thing to note is that examiners always give the minimum amount of information for the question to still be answerable. If you have not used all the information then you probably haven't answere...