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Solve x^2+6x-7 by completing the square.

We know that to complete the square we put the equation in the form (ax+b)^2+c=0. So we must do that to our equation. We will begin by establishing what will be within our squared brackets. As there is no co...
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Answered by James C. • Maths tutor
10402 Views

What are 'checks and balances'?

Checks and Balances, as it is referred to in the American system, is a system of limiting power which allows the branches of government to put a 'check' on one another in order to stop political domination. ...
KM
5174 Views

How do I begin to answer a source question?

Source questions are much easier when they are broken down into what we are truly asking about the source: Is this source reliable? Is this source useful? It is important to note that all sources have utilit...
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Answered by Katrina M. • History tutor
26161 Views

How do I become confident in speaking another language?

Confidence in languages is underestimated and it depends on the attitude and personality of the student. The majority of students associate confidence with fluency - however, the easiest way to achieve confi...
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Answered by Chloë I. • German tutor
2084 Views

Make a the subject of 3(a+4) = ac+5f .

3a + 12 = ac + 5f 3a - ac = 5f - 12 a(3-c) = 5f - 12 a = (5f - 12)/ (3 - c)
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Answered by Armita A. • Maths tutor
4352 Views