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Find the values of x where the curve y = 8 -4x-2x^2 crosses the x-axis.

A curve crosses the x-axis when y=0, if we put that into the equation above we get the quadratic equation 0=8-4x-2x 2 . The solutions to this equation are the values of x where y=0, which is the same as sayi...
HW
Answered by Hannah W. • Maths tutor
8102 Views

What factors affect the lattice enthalpy of an ionic solid?

We must remember that negative energies (in any context) generally represent energetically stable configurations and as the energy of a system increases, it will become more unstable. Firstly, ionic size aff...
SD
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What are the similarities and differences between mitosis and meiosis?

Mitosis is the process by which a cell divides to give rise to two identical diploid daughter cells and is how all somatic cells are produced. Meiosis is the process by which a cell gives rise to four geneti...
NS
Answered by Natasha S. • Biology tutor
21782 Views

Can you explain induction and go through an example?

Induction is a method that can be used to prove that a mathematical statement holds for possitive integers, n. It usually consists of four steps, as follows: 1) Basis: Show that the statement to be proved ho...
AS
3395 Views

How do you write in the future tense?

It's really good to use different tenses in your writing for French because this helps the examiner to give you higher marks. I think that the future tense is one of the easiest to learn so it's definietly a...
IW
Answered by Isabella W. • French tutor
3819 Views