Maths with David

    5 December

    👉🏼Simplify \frac{x^2 - 9}{5x^2 + 14x - 3}

    👈🏼Make w the subject of g = \frac{w}{w-5}

    👆🏼Find the reciprocal of 1.2 \dot{3} \dot{5}

    👇🏼f(x) = \frac{8x-1}{5} . Find f-1(x)

    🖐🏼The areas of the circle and triangle below are equal. Express y in terms of x:

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