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Write 2x^(2) + 9x + 1 in the from a(x+m)^(2) + n, and hence solve 2x^(2) + 9x + 1= 0, leaving your answer in surd form.

So the first part of the question is about completing the square. Since the coefficient of .. is greater than one, the first step in carrying out this process is to take out the ‘2’ from the equation. Thi...

IS
Answered by Isobel S. Maths tutor
4098 Views

Explain why graphite conducts electricity.

Each carbon atom forms 3 (covalent) bonds with other carbon atoms. One electron is left to be free, or as we say de-localised, and therefore can move around freely. Therefore an electrical potential can b...

LS
Answered by Liam S. Chemistry tutor
1793 Views

Expand (2x+3)(x-2)

There are many ways to answer this question but I will use the 'foil' method, where foil is an acronym for ensuring we don't forget any terms. F is for first, where we multiply the first terms in each bra...

Answered by Maths tutor
6554 Views

Siegt der Film uber das Buch?

Filmen und Buchen beide ausserste Starke haben. Nostalgik, Romantik, Tragedie und humor bestehen aus den ahnlichen Qualitaten, die Filmen und Buchen teilen. Sie sind in einem feinen Gleichgewicht, obwohl,...

WD
Answered by William D. German tutor
1181 Views

How important was Religion to the Upheavals of the 1640's?

Of the nearly 100,000 men who died fighting for Kirk, King or Parliament in conflict in the 1640’s all, in an age of deep and almost universal piety, were motivated, to a greater or lesser extent, by reli...

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Answered by William D. History tutor
2211 Views

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