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First of all, you want to get both of the questions equating to y as this is a common factor between the two equations. SO y=7-2x and 3x-8=y As both of the equations are equal to y, we can set them equal ...

First Multiply x by (x +4) Next multiply -3 by(x+4) Then simplify the sum : x²+4x-3x-12 Hence the answer is : x²+x-12

The triangle is a right angled triangle with hypotaneuse y, and sides are 7 and 10. The angle θ is between the hypotaneuse and the side of length 10 (I do have a diagram) For question 1: Using Pythagoras’...

Differentiation is essentially a method of finding the gradient of a function. To put that in better terms, imagine you have a graph of y=x, this is a straight line which means the gradient will always be...

First of all we need to find a common denominator. This is the smallest number that can be divided by both 5 and 8, which is 40.

24/40 + 35/40

Method: 5 goes into forty 8 times and so we mus...