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Solve (6/x-2)-(2/x+3)=1

Firstly, begin by multiplying both sides of the equation by (x-2) and (x+3), this gives 6(x+3)-2(x-2)=(x+3)(x-2). Expand out the brackets on each side of the equation to give 6x+18-2x+4=x 2 -2x+3x-6. Next, e...
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Answered by Ryan H. • Maths tutor
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A cell in the basal layer of the skin contains 46 chromosomes and divides by mitosis to produce new skin cells. After ten successive divisions, how many chromosomes will the basal cell have?

46 chromosomes - all cells which undergo mitosis should maintain chromosome number
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Answered by Fraser T. • Biology tutor
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Balance this equation: Li(s) + H2O(l) → LiOH(aq) + H2(g)

2Li(s) + 3H2O(l) → 2LiOH(aq) + 2H2(g)
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Answered by Fraser T. • Chemistry tutor
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While observing a patient on attachment, they tell you about some adverse side effects they are having to one of their tablets, while the doctor has nipped out of the room. They ask if it would be okay to stop taking them, what should you do?

You should advise the patient that you are only a medical student and so are therefore not qualified to give medical advice as of yet and suggest they tell the doctor about their symptoms when they return, a...
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Factorise the equation below (1)

(1) x 2 + 15x + 56 = 0 56 = 1 x 56, 2 x 26, 4 x 14, 7 x 8 7 + 8 = 15 Hence, factorised equation is (x + 7)(x + 8) = 0
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Answered by Fraser T. • Maths tutor
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