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How do you solve quadratic inequalities?

Quadratic inequalities generally don't arrive in the standard quadratic form (Ax^2 + Bx +c) and so can be sometimes difficult to spot. However, if you see an X^2 - or brackets that expand to X^2 - on either ...
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Answered by David K. • Maths tutor
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Factorise and solve x2 - 8x + 15 = 0

Factorise the quadratic into two brackets to make (x-3)(x-5)=0 Because the product of these brackets is zero then the value of one of the brackets must equal zero. In order for one of the brackets to have a ...
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Answered by Mohamed S. • Maths tutor
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“Financial & Economic problems were the most serious domestic problem faced by Philip II- Assess the validity of this view

Financial and economic problems during the reign of Philip II were his most severe domestic problem. Economic regionalism led to record levels of poverty and unemployment which, by 1598, led to the collapse ...
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Answered by Ethan S. • History tutor
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To what extent has Congress become the weakest of the three branches of US government?

Congress has become the weakest branch of government. Traditionally Congress has exercised the right to enforce decisions made by the Supreme Court, which would suggest that they are more powerful. However r...
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Answered by Ethan S. • Politics tutor
8197 Views

Balance the chemical equation: AgI + Na2S → Ag2S + NaI

2 AgI + 1 Na 2 S → 1 Ag 2 S + 2 NaI Both sides of the equation need to have the same number of each element. We need to make sure that the amount of one element we have on one side of the equation is the sam...
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Answered by Mohamed S. • Chemistry tutor
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