exam Maths Puzzle Numerical Ability

8pq^2(2pq-3p+5q)

please help me solve this.

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exam Other Question

1: For questions 1 – 4: Find the equation of the inverse for each of the following which is one-to-one. Solve each for y.

2x + 3y = 6
y = (6-3x)/2
y = (-3x)/
2x - 7√x - 30 = 0.

Solve by factoring.