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Factorise and solve: x^2 - 8x = -15

Step 1 : The first step is to rewrite the equation in the form a x 2 + b x + c = 0. So in this case, we achieve this by adding 15 to both sides: x 2 - 8x + 15 = -15 + 15 x 2 - 8x + 15 = 0 Step 2: Now we need...
MJ
Answered by Maisie J. • Maths tutor
8104 Views

What are the products of the reaction between an acid and a base?

A salt and water (H 2 O). H + from the acid and OH - from the base combine to make water. The salt formed depends on the acid and base counterions, and is usually dissolved in water.
GH
Answered by George H. • Chemistry tutor
7992 Views

How do I structure an essay properly?

It's actually really easy to do your essay structuring right. I always followed this formula and still do! I use PEE. This is simply Point, Evidence, Example. So, if the question is, 'how did Hitler gain pow...
AT
Answered by Annabelle T. • History tutor
2635 Views

how are caves formed?

caves are mostly formed on cliffs facing the ocean. If you go through in your head the conditions of that cliff it should help you answer this question. If the cliff is facing the ocean then waves will be hi...
LL
Answered by Logan L. • Geography tutor
5098 Views

What's the difference between a normal good and a inferior good?

A normal good is a good in which as your income rises your demand for that good also rises. And if your income falls your demand for that good also falls. The best way to learn about normal goods is with exa...
LL
Answered by Logan L. • Economics tutor
21881 Views