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expand (x + 5) (x + 3)

x^2 + 8x + 15

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Answered by Thomas W. • Maths tutor

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13/2 - 5/3 = ?

There are n sweets in a bag. 6 of the sweets are orange. The rest of the sweets are yellow. Hannah takes a sweet from the bag and eats it. Hannah then takes at another sweet. The probability that Hannah eats two orange sweets is 1/3. Show that n²-n-90=0

How do you factorise a quadratic equation where the coefficient of x^2 isn't 1?

x^2-9x+20=0

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