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Given the curve y=x^2 -6x +8, find the turning point.

For a turning point, the differential of the curve is equal to 0. Therefore dy/dx = (12)x^(2-1) - (61)x^(1-1) + 0 = 0. This gives x = 3. Substitute this back into the original equation to get y=-...

Answered by Ellis B. • Maths tutor

7726 Views

Expand and simplify fully (x+3)(x-1)

When expanding brackets one should follow the FOIL order, multiplying out in this order:First- The first term in each bracket Outside- The outside terms of the brackets

Answered by Callum L. • Maths tutor

9384 Views

How is the present subjunctive formed?

When studying Spanish, the subjunctive can seem rather daunting, but once you crack it, it is rather simple! One thing you need to be confident with to use the subjunctive is your present verb endings.

Answered by Liam C. • Spanish tutor

2019 Views

How do I write a good essay?

Writing a successful essay can be difficult at first, especially in exam conditions. It is often easy to stray from the asked question so it is important to remember, even if what you are writing is compl...

Answered by Hazel R. • English tutor

2587 Views

Factorise x^2+3x+4 without the use of quadratic formula

We use the form ax^2+bx+cTo factorise we need to put the equation into 2 bracketsThese 2 brackets will be in the form (x+k)(x+j) where k and j are to be foundWe need to find a combination of k and j for w...

Answered by William C. • Maths tutor

3646 Views