exam Maths Puzzle Numerical Ability

How do I expand the following to include all stages:
2
(x+2)(x + 7)

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exam Other Question

The monthly profit P (in dollars) that Jim makes on the sale of x mobile homes is determined by the formula P = x2 + 5x - 50. Find the values of x for which Jim makes profit. A random sample of 30 executives from companies with assets over $1 million was selected and asked for their annual income and level of education. The ANOVA comparing the average