1,045 prompts matching "Solving an equation where the surd must be isolated first"
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Solve the logarithmic equation log5(x+3) + log5(2) = 2
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Simplify the surd expression sqrt(72) + sqrt(18)
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Simplify the surd expression sqrt(50) - sqrt(8)
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Simplify the surd expression (3+sqrt2)(3-sqrt2)
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Simplify the surd expression 5/(1+sqrt3)
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Simplify the surd expression (2+sqrt5)^2
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Worked example: find a+b where a=(2,-1) and b=(-3,5)
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Worked example: find 2a-3b where a=(4,1) and b=(-2,3)
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Give me a 5-minute recap of indices and surds
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Learn: Making one unknown the subject of the linear equation
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Quiz: Solving the quadratic that results from the substitution
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Common Mistakes: A word problem giving one linear and one quadratic equation
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Learn: Forming the quadratic that decides where a line meets a curve
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Common Mistakes: Using the factor theorem before dividing
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WAEC Prep: Factorising the difference of two cubes
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Learn: Solving a cubic once it has been factorised
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Common Mistakes: Deciding between tautology, contradiction and contingency
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Common Mistakes: Arranging objects when some must stay in a fixed order
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Practice: A selection that must include one particular member
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Common Mistakes: The number of ways of dividing a class into groups
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