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To begin this question, we need to subtract 11 from both sides. 3x + 11 - 11 = 56 - 11The two 11s on the left hand side cancel each other, while 56 - 11 = 45. Therefore, 3x = 45Now we need to divide both ...

To answer this question, we first need to work out the factors of 21. These are the whole numbers which multiply to make 21. We know that 1 multiplies with 21 to make 21, so they are both factors. 2 is no...

To begin, we need to do the division 106/6. We know that 6 does not go into 1, so we can carry the one and see how many 6s go into 10.We can see that 6 goes into 10 once, with a remainder of 4, so we can ...

We can use the formula method (for solving quadratic equations) to find 'roots' or values of x that satisfy or 'work out' for a given quadratic equation of an unknown variable (say x.) The formula is:x=-b...

Assuming the correct tools of differentiation have been taught, we can tackle each term seperately and then rearrange to have dy/dx as the subject.

Taking a look at the first term, x^2,  ...