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How do I solve a quadratic equation by factorising?

 A quadratic equation is one that includes xas the highest power of x. Factorising is achieved in 3 steps. Let’s consider the example x2-3x-3=11) Put the equation into the form...

SG
Answered by Shannon G. Maths tutor
4983 Views

What was the significance of the flight to Varennes?

On the night of the 20/21st June 1791, King Louis XVI attempted to flee in an event that was later named the flight to Varennes. His plans were shrouded in secrecy, but he probably int...

KC
Answered by Kathryn C. History tutor
32153 Views

What is protectionism?

Protectionism is a government philosophy towards foreign trade. According to this philosophy, governments should use tariffs and quotas to protect domestic firms from foreign competiti...

KC
Answered by Kathryn C. Economics tutor
6378 Views

What are barriers to entry?

A barrier to entry is an obstacle that prevents a new entrant from joining a market. They exist within both oligopolistic and monopolistic market structures. Barriers to entry matter b...

KC
Answered by Kathryn C. Economics tutor
20425 Views

What is the trend in first ionisation energy across a period?

Overall, the general trend is an increase across the period.

The decrease in shielding (as outer electrons are less influenced by the nucleus) is outweighed by an increased nuclear charge...

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Answered by Ben W. Chemistry tutor
12997 Views

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