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Factorise x^3+3x^2-x-3

Test factors of -3 to find a root for the equation. For example, try 1, 1^3+3*1^2-1-3=0, so 1 is a root, and (x-1) is a factor. Now it's known that: (ax^2+bx+c)(x-1)=x^3+3x^2-x-3. By comparing coefficients f...
SC
Answered by Sian C. • Maths tutor
7949 Views

Give the full balanced symbol and word equation for aerobic respiration

glucose + oxygen --> energy + carbon dioxide + water C6H12O6 + 6O2 ---> energy + 6CO2 + 6H20
JV
Answered by Justine V. • Biology tutor
12467 Views

How does the preceding direct object pronoun affect past participles in the following clause

The past participle agrees with the number and gender of the PDO with nothing added for masculine singular words, -e for feminine singular words, -s for masculine plural and -es for feminine plural E.g. Le m...
LR
Answered by Lorna R. • French tutor
2344 Views

How do I translate the following? 'It is shocking that vulnerable adolescents are punished so severely.'

First we need to tackle the difference between 'Il est' vs. 'C'est'. Although not a huge grammatical error if chosen incorrectly, it looks impressive to examiners when a student can differentiate between the...
EB
Answered by Eleanor B. • French tutor
3619 Views

How should I approach a close reading analysis of a poem?

First identify points of interest in the poem; for instance, unusual/ emotive words, punctuation, word-sounds or images. Then thoroughly break down a select few of these, making sure to mention how they affe...
ED
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