exam Maths Puzzle Numerical Ability

simplify (2x + y)(x2 - 3xy + 2y2) and (3x + 2)(4x - 5)
then add.

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exam Other Question

List the steps you use to change a measurement in degrees Celsius to degrees
Fahrenheit.

If it is 100 degrees F what is the temperature in Celsius?

If the temperature in F given an arbitrary triangle,what can you say about the sum of 3 exterior angles, 1 for each vertex of the triangle??

thnx again