Maths with David

    15 November

    👉🏼Simplify 5(x + 3) + 2x – 4

    👈🏼Calculate 8 \frac{1}{3} \div \frac{4}{7}

    👆🏼Find x:

    👇🏼Factorise completely: x3 – 25x

    🖐🏼In the following Venn diagram, if we know that A is true, find the probability of B (we can say “Find the probability of B given A”, or “Find P(B|A)”):

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