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Simplify √(4x^8).

√(4x 8 ) = √4 x √(x 8 ) = 2 x (x 8 ) 1/2 = 2x 4 Remember that (x n ) p = x np .
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Answered by Della S. • Maths tutor
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Describe two ways in which the process of cell division shown differs between plant cells and animal cells.

In animal cells there will be centriolesIn animal cell there will be no cell plate formation/ there will be constriction of the cytoplasm
Answered by • Biology tutor
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Differentiate f(x) = (3x + 5)(4x - 7)

A good way to approach this question is to first expand the brackets . This gives 12x 2 - 21x + 20x - 35 (remember to take the negative seven into account). We can then simplify this to give 12x 2 - x - 35 ....
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Answered by Akanksha D. • Maths tutor
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Expand and simplify the following expression: x(5x – 2) – 3(x2 – 2x + 7)

5x2 – 2x – 3x2 + 6x – 21= 2x2 + 4x − 21
Answered by • Maths tutor
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Explain how global patterns of migration are influenced by high concentrations of young workers and female migrants. (8)

NB: ALWAYS check the number of available marks - so this is a typical 8 mark question and therefore you should aim to write 4 A01 points and then develop them with the typical PEE structure, using case studi...
Answered by • Geography tutor
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