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Solve x^2 = 4(x - 3)^2

Multiply out brackets x 2 = 4(x 2 - 6x + 9)x 2 = 4x 2 - 24x + 36 Minus x 2 from both sides 3x 2 -24x + 36 = 0 Divide equation by 3x 2 - 8x + 12 = 0 What 2 numbers add to make -8 and multiply to make 12? -6 a...
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Answered by Rosie H. • Maths tutor
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[In answer to a problem question] Consider the rights and remedies, if any, of Marco against Dr Jones and the hospital in connection with his partial paralysis.

Marco has a strong claim in negligence against Dr Jones for his incorrect diagnosis and ineffective treatment which falls below the duty of care expected from a doctor in these circumstances. Medical profess...
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Answered by Ed G. • Law tutor
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Define x and y if 2x+y=16 and 4x+6y=24

These are a pair of simultaneous equations.First, we can equate two of the coefficients in each equation (let's choose x) by multiplying each equation respectively.With our first equation, multiply it by 2: ...
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Answered by Bexi H. • Maths tutor
3855 Views

There are n sweets in a bag. 6 are orange. A random sweet gets eaten, and then a second one. The probability that both sweets are orange is 1/3. Find n.

The probability that the first sweet is orange is 6/n, as 6 of the n number of sweets are orange. After an orange sweet is eaten, there are 5 orange sweets left and n-1 total sweets in the bag. This means th...
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Answered by Josh G. • Maths tutor
3840 Views

What is the importance of marked and unmarked terms?

Marked and unmarked terms are very useful when analysing the representation of gender in texts as words which are marked are those which are ascribed less prestige than the standard form of a word. Gender in...
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