## Welcome to H3 Maths

Blog Support for Growing Mathematicians

## Posts tagged with How to succeed in Maths

### Secrets of a successful maths student – part II

January30

“It was not a good start to my Year 9 maths. I was about middle of the class and struggled with key concepts and was never keen to raise my hand in response to a question from the teacher – do you know the feeling? We had a visiting teachers from somewhere in Australia who […]

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### Secrets of a successful maths student – part 1

January26

Dr Ben Carson was born in Detroit and brought up by his single mother. When he was young, he was in the bottom of the class. and he struggled in primary school (Grade 1-6), but started to excel in middle school and throughout high school. He graduated with honors from his high school and eventually […]

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#### Post Support

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)?]