exam Maths Puzzle Numerical Ability

Combine like terms

3x - 6x2 + 2 - 4x2 + 7x - 1 - 8 + 3x2

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exam Other Question

Evaluate the expression and write the result in the form a + bi.

sqrt(1/3)sqrt(-27) |(3,1),(2,5),(4,0),(3,-2)|