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Thanks a million….oops, 10,000!


Thanks for supporting H3Maths. We have now reached 10,000 hits on the blog which we never thought would happen, ever! Many students have enjoyed the way that we connect Mathematics with the real world, simplify important classroom concepts, and focus on career opportunities that require (or don’t require) a basic mathematical interest. So, from the […]

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NCEA Level 2 Algebra Problem. Using the information given, the shaded area = 9, that is:
y(y-8) = 9 –> y.y – 8y – 9 =0
–> (y-9)(y+1) = 0, therefore y = 9 (can’t have a distance of – 1 for the other solution for y)
Using the top and bottom of the rectangle,
x = (y-8)(y+2) = (9-8)(9+2) = 11
but, the left side = (x-4) = 11-4 = 7, but rhs = y+? = 9+?, which is greater than the value of the opp. side??
[I think that the left had side was a mistake and should have read (x+4)?]

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