exam Maths Puzzle Numerical Ability

Can -4w(w^2+4w-5) be factored?

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exam Other Question

the length and width of a rectangle are in the ratio 3:2. if the length is increased by 20 and the width is decreased by 5, the ratio of the length to the width becomes 2:1. find the length and width of this rectangle. Write an equation for the line containing (-4, 19) and (-2,9). I tried to do it and used the calculator on the site, but I come up with something different