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write x^2 + 10x - 6 in the form (x+a)^2 + b

(x + 5)² - 5² - 6(x + 5)² - 25 - 6(x + 5)² - 31

Answered by Thomas B. • Maths tutor

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Solve 3x+7=8

solve: [(3x-2)/4] - [(2x+5)/3] = [(1-x)/6]

Jack has 20 sweets. Will also has 20 sweets. Jack gives Will x sweets. Jack then eats 5 of his sweets. Will then eats half of his sweets. Write expressions for the number of sweets Jack and Will now have.

Show that n²-n-90=0

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