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secondary 2 | Maths
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Hi pls help thanks
Date Posted: 4 years ago
Views: 276
note:
6x²y = 6x(xy)
16y - 8x = 8(2y - x)
12x -24y = -12(2y - x)
4xy² = 4y(xy)
subst. the above into qn, &
start cancelling ...
...
6x²y = 6x(xy)
16y - 8x = 8(2y - x)
12x -24y = -12(2y - x)
4xy² = 4y(xy)
subst. the above into qn, &
start cancelling ...
...
See 1 Answer
done
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When two fractions are being multiplied, the corresponding numerators multiply and the corresponding denominators multiply.
We group like terms together (we group all numbers together, all x together, all y together etc).
Lastly, the x - 2y and the 2y - x are not the same number, but they look similar. The trick is to write x - 2y as - (2y - x) or to write 2y - x as - (x - 2y), so that there will be a term which is common in both the numerator and the denominator, which will cancel out each other, leaving behind -1.
We group like terms together (we group all numbers together, all x together, all y together etc).
Lastly, the x - 2y and the 2y - x are not the same number, but they look similar. The trick is to write x - 2y as - (2y - x) or to write 2y - x as - (x - 2y), so that there will be a term which is common in both the numerator and the denominator, which will cancel out each other, leaving behind -1.
Date Posted:
4 years ago
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