739 prompts matching "Factorising an algebraic expression by grouping"
WAEC Past-Question Style: Clearing the denominators of an equation with algebraic fractions
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Teach me: What dy by dx means as a rate of change
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Practice set: Practice on two rates of change linked by a chain rule
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Practice set: Integrating expressions with negative and fractional indices
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Explain back: Adding and subtracting vectors by components
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Teach me: A translation described by a column vector
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Teach me: The determinant of a 2 by 2 matrix
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Explain back: The inverse of a 2 by 2 matrix and the formula for it
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Worked example: Verifying an inverse by multiplying back to the identity
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WAEC pitfalls: Dividing by a determinant of zero
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Teach me: Solving an equation by finding where two graphs meet
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Real-life Nigeria: Where a graphical method beats an algebraic one
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Practice set: Estimating an answer by rounding each quantity first
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Worked example: Compound interest worked year by year and then by formula
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Teach Me: Perimeter and area of plane shapes
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Teach Me: Angles of elevation and depression
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Teach Me: Trigonometric ratios of obtuse angles
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Quiz me: Solving a congruence by testing each residue in turn
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Practice: A savings scheme that grows by a fixed amount each month
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Word Problem: Simultaneous linear inequalities
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